this is bbc news. we will have the headlines and all the main news stories for you at the top of the hour,

straight after this programme. coming up on the travel show. this place is a realfiesta! wow! look at this! something so exhilarating about watching horses running. theme music. hello and welcome to the travel show. with me, rajan datar.

this week, we are taking a breakfrom being on the road to look back at some of our favourite stories from the past three months. this summer has seen record temperatures in london and in other parts of the world. some airlines and airport struggle to be so many of us wanting to travel again and sometimes does seem the price ofjust about everything has gone up. but that has not stopped us from bringing you some of the best travel stories around the world. and we have beenjoined by new member the team! how do i have so much stuff? how will i fit all of this? in that tiny little car? back injuly, we welcomed top travel vlogger ava zubeck to the team and we spent no time sending her to mexico, to find out more about a simple but effective way of cleaning up the country's waterways, with the help of tourists. this week, i am in the ancient wetlands of xochimilco

in the south of mexico city, a unesco world heritage site and one of the country's must see destinations. this sprawling network of canals was first built by the aztecs and stretches over 180 kilometres. not surprisingly, the area now attracts masses of tourists every year. check out all of these amazing boats. they are so colourful. these are called trajineras. hola! i am here to meet carlos diaz, one of the best tour guides in town. but this isn't your typical sedate trip along the river. i was honestly expecting to go on a quiet little boat ride, but this place is a real fiesta. we are stuck in a trafficjam of like ten different boats. tourist boats, shop boats...

singing. floating band boats. there's a mariachi! mariachi music plays. sings in spanish. this is unreal. sings in spanish. woohoo! applause. away from the joyful chaos, i want to talk to carlos about life on the canals. that's if i can keep us dry, of course! how important is tourism to xochimilco?

how has the area changed in that time?

professor rodriguez—vasquez has been monitoring this pollution, and it is pretty plain to see why this situation is getting worse. this isn't the most beautiful spot in mexico city, is it? yeah. can you tell me exactly just how badly the water is contaminated here? it is very highly contaminated with pathogens, chemicals, pesticides, hormones and human waste also. wow. yeah. and here we have a lot of places like this. so this is not the only drain like this in mexico city. no, no, no, we have a lot. wow. not only does this pollution contaminate the water, but the dangerous pathogens can also evaporate into the air and be absorbed into the crops that are grown in the wetlands. you know, the moment you leave behind the super busy embarcaderos of xochimilco,

it feels like you enter a completely different world. there is so much wildlife here, so much greenery, it's just so serene. luckily, my friend, the professor, mayjust have identified a simple but effective solution. in a rather basic looking laboratory in the wetlands, her team have invented a system that produces tiny bubbles, called nano bubbles, that can be pumped into the polluted water. how does the science behind this actually work. yeah, we create the nano bubbles with the solar energy so the nano bubbles can destroy the contaminants. as well as tackling the pollution, the nano bubbles oxygenate the water, breathing life again into the waterways. and what is even more encouraging is that this simple but effective technology can be used on tracking apps so the tourist boats can be part of

the solution in the fight against pollution! it is amazing to think this piece of technology is cleaning canals as we speak. amazing, hey? what these projects across the wetlands hopefully show is that with a bit of creativity and collaboration, tourists can play a key role in helping to maintain stunning places like this. and it has got to be good news!

that was our new member eva zu beck reporting from mexico. as i was saying before, summer 2022 was one of the hottest on record across many parts of europe. spain and france were just two countries that for devastating forest fires break out as a result. none of them was as widespread as those that affected the greek island of evia injuly 2021 and a year on we sent our reporter to find out how it has been recovering. i have been sent some pictures of the place we are on the way to now and it looks lovely. looks really lush and green and fertile but i have been told that since the fires hit this whole area it now looks very different and even looking at the window, as far as the eye can see, all you are looking at is burnt trees. it is really sad.

adriana and pantelis people work for trekking hellas in evia. they used to take tourists on hikes through these once—stunning forests. it looks like our path is blocked. i don't think we've got anymore routes. that is astonishing. i remember seeing it from the television, from the news. i remember it on tv. i felt it was fake news. i couldn't realise this is really happening. i was thinking it can't be true. how much of this area was damaged by the fire? well, in numbers, it was half a million hectares. you can consider it as even

bigger than the city of athens. so an area larger than the city of athens? yes. was burnt by the fires? even teams of firefighters from other countries had to come here to support us, bringing planes, helicopters, trucks, in order to try to stop the fire. my next stop on the island is animal sanctuary ranch eros. before the fires it was home to horses and donkeys. children could visit for riding lessons. look at these guys, wow! something just so exhilarating and majestic about watching horses run. i had a chance to see the extent of the damage the fires have had on the land here in this area. but now i want to see what sort of impact it's had on the lives around here. what was like before fire?

it was a paradise. it was calm. it was a forest, it used to be a forest, with so many trees, green. i can see in your eyes how emotional it is and it must have been a really difficult time. what was it like when the fires were raging here and what did you do? we knew the other villages was completely burnt, so we just say, we look at the place for the last time and we went. we go. i was thinking, i am gonna get out alive, because everyone was leaving by car and we were on foot with six horses and two donkeys. as the fires raged through the night, the animals broke loose and ran away.

we lost them. you lost them? yes, because we were just four people, us two and two friends that came for help, and the others escaped. when it was finally safe to come back, it was with a heavy heart. it was really difficult to come inside this place because all the trees was burnt and down. so there was no entrance, nothing. but they were here, all together. they went away to survive from the fire and then they came back here and theyjust... waiting. when you are so unhappy, suddenly you are happy. so they are alive, we are alive.

ade in evia injuly, a year on from those truly devastating forest fires. now stay with us because still to come on the travel show: we're looking for ancient roman ruins on spain's mediterranean beaches. i can't believe i'm holding in my hand a piece ofjewellery from thousands of years ago. that is amazing. and playing mahjong in hong kong. oh, my gosh! so many rules! the huge sand dunes of southern spain are some of the largest in europe and yet, they remain relatively unknown, even amongst the most well—explored travellers, with even fewer people aware of the treasures concealed beneath their moving sands.

i'm meeting eddi pitcher, a writer and traveljournalist who specialises in uncovering hidden places, and she's going to guide me off the beaten track on my mission to learn more about the living sand dunes of southern spain. eddi, where are you taking me today? so, we are taking the wild way to the bolonia beach, and we can see that this is the way because we've got knotted — knotted beach grass here. there are no signs, so it's — i said it was a wild way. i'm definitely glad that eddi's here to show me the way on this one. wow! look at this! there you go, so you've got your desert dune just there. wow! this is the bolonia sand dune, one of spain's largest sand dunes, standing at over 30 metres high and 200 metres wide, all concealed within the estrecho nature park, one of cadiz�*s most unspoilt and off—the—beaten—track areas. we made it!

we did it! probably the best way to think about this coastline, which is endlessly shifting down the centuries, is as a living sand dune. and now, with climate change, the winds are getting stronger and pushing with them these dunes. so, they're really moving? yeah, exactly. these dunes are being battered by hurricane—force winds, forcing them inland and revealing some remarkable hidden history concealed below. if you think about it in terms of history, this is a melting pot of cultures. you've got africa, you've got europe, you've got all of the mediterranean and then, the travels across the atlantic, and all of those peoples have left their vestiges, their archaeological sites along this coastline, which have been kept perfectly intact down the millennia. my next stop is cape trafalgar, 60 kilometres down the coast from bolonia, where archaeologists from the university of cadiz have just discovered some remarkable ruins, thanks to

these moving sands. so, when you discovered and realised it was a tomb, you must�*ve been preparing to find some bones in here, right? so, the excavation here is very similar to the excavation in egypt tombs and they have preserved very well the bones, so the state of preservation of the tomb, of the bones is excellent. we have found arrowhead. speaks spanish. pendant. she gasps. i can't believe i'm holding in my hand a piece of jewellery from thousands of years ago. that is amazing. speaks spanish. a bead!

christa, uncovering the past there, in spain. injune, carmen was also discovering some secrets in hong kong. not ancient ruins this time, but clues as to how to win the game of mahjong. that traditional chinese test of skill and cunning, but one time looked in danger of disappearing because young people there seem more interested in gazing at their smartphones rather than outwitting their opponents at the mahjong table. as carmen found out, the game is now enjoying something of a resurgence, so we sent her to pick up some

tips. some say the game of mahjong was invented by confucius himself. others, by chinese fishermen around 1,000 years ago. whatever its roots, it is massive in hong kong. it's pretty serious business which is why am trying to keep my voice down. but if you can watch a game in progress, it's a great way of getting under the skin of the city. the basics are actually very simple. the winner is the first to collect four sets of three and a pair. but it still takes a bit of figuring out. i get confused with the win. it's very difficult if you don't speak cantonese. it's a very traditional game, played largely by older people. take auntie mei here. it's claimed, she is the last female mahjong carver in the city. each tile is handmade.

but there are young people here who still care about the game and are keen to teach newcomers the rules. 0nly take from your left for sequence. yes, because this is... oh, my gosh, there are so many rules! why have i only got ten?

because you have three here. you are watching bbc world news. we are going to go to the un in new york where liz truss the new british prime minister is about to address the general assembly now. i is about to address the general assembly now.— assembly now. i have great pleasure — assembly now. i have great pleasure in _ assembly now. i have great pleasure in welcoming - assembly now. i have great pleasure in welcoming herl pleasure in welcoming her excellency elizabeth i invite her to address the assembly. mr i invite her to address the assembly-— i invite her to address the assembl . ~ , , ., assembly. mr president, your excellency — assembly. mr president, your excellency is, _ assembly. mr president, your excellency is, in _ assembly. mr president, your excellency is, in the - assembly. mr president, your| excellency is, in the aftermath of the — excellency is, in the aftermath of the second world war, this building — of the second world war, this building symbolised the end of aggression. for many decades, the un — aggression. for many decades, the un has helped deliver stability and security in much of the — stability and security in much of the world. it has provided a place — of the world. it has provided a place for— of the world. it has provided a place for nations to work together on shared challenges and it— together on shared challenges

and it has promoted the principles of sovereignty and self—determination, even through— self—determination, even through the cold war and its aftermath. but today, those principles that have defined our lives _ principles that have defined our lives since the dark days of the — our lives since the dark days of the 1940s, our fracturing. for the — of the 1940s, our fracturing. for the first time in the history— for the first time in the history of this assembly, we are meeting during a large—scale war of aggression in europe, and authoritarian states— in europe, and authoritarian states are undermining stability and security around the world. geopolitics is entering a new error, one that requires — entering a new error, one that requires those who believe in the founding principles of the united — the founding principles of the united nations to stand up and be counted. in the united kingdom, we are entering a new era tou — kingdom, we are entering a new era tou i— kingdom, we are entering a new era too. ijoin you here just two — era too. ijoin you here just two days— era too. ijoin you here just two days after her late majesty queen— two days after her late majesty queen elizabeth ii was laid to rest — queen elizabeth ii was laid to rest we _ queen elizabeth ii was laid to rest. we deeply mourn her

passing _ rest. we deeply mourn her passing and we pay tribute to her service. she was the rock on which _ her service. she was the rock on which modern britain was built, — on which modern britain was built, she _ on which modern britain was built, she symbolised the post—war build —— values on which — post—war build —— values on which this— post—war build —— values on which this organisation was founded. 0ur constitutional monarchy, underpinned by a democratic society, has delivered stability and progress. her late majesty transcended the difference and healed — transcended the difference and healed division. we saw this in her visits— healed division. we saw this in her visits to post apartheid south _ her visits to post apartheid south africa and the republic of ireland. when she addressed this general assembly 65 years ago. _ this general assembly 65 years ago. she — this general assembly 65 years ago, she warned that it was vital— ago, she warned that it was vital hot _ ago, she warned that it was vital not only to have strong ideals, _ vital not only to have strong ideals, but also to have the political _ ideals, but also to have the political will to deliver on them _ political will to deliver on them. now we must show that well _ them. now we must show that well we — them. now we must show that well. we must fight to defend those — well. we must fight to defend those ideals and we must deiiver— those ideals and we must deliver on them for all of our pe0pie~ _ deliver on them for all of our people. as we say farewell to

our late — people. as we say farewell to our late queen, the uk opens a new chapter, a new carolean age. — new chapter, a new carolean age. and _ new chapter, a new carolean age, and the his majesty king charles— age, and the his majesty king charles iii. we want this era to be — charles iii. we want this era to be one _ charles iii. we want this era to be one of hope and progress, one in— to be one of hope and progress, one in which we defend the values _ one in which we defend the values of individual liberty, self—determination and equality before — self—determination and equality before the law. 0ne self—determination and equality before the law. one in which we ensure — before the law. one in which we ensure that freedom and democracy prevail for all people _ democracy prevail for all people. and one in which we deiiver— people. and one in which we deliver on— people. and one in which we deliver on the commitments that her late — deliver on the commitments that her late majesty the queen made here 65— her late majesty the queen made here 65 years ago. this is atrout— here 65 years ago. this is about what we do in the united kingdom, — about what we do in the united kingdom, and what we do as member— kingdom, and what we do as member states of the united nations _ member states of the united nations. so today i will set out what _ nations. so today i will set out what steps we are taking at home _ out what steps we are taking at home in— out what steps we are taking at home in the uk, and our proposed blueprint for the new era we — proposed blueprint for the new era we are now in, the new partnerships and the new instruments that we need to collectively adopt. 0ur

collectively adopt. our commitment to hope and progress must _ commitment to hope and progress must begin at home, in the lives — must begin at home, in the lives of— must begin at home, in the lives of every citizen that we serve — lives of every citizen that we serve. 0ur strengths as a nation — serve. 0ur strengths as a nation comes from the strong foundations of freedom and democracy. democracy gives people — democracy. democracy gives people the right to choose their— people the right to choose their own path, and it evolved to reflect _ their own path, and it evolved to reflect the aspirations of citizens _ to reflect the aspirations of citizens. it unleashes enterprise, ideas and opportunity, and it protects the freedoms that are at the very— the freedoms that are at the very core _ the freedoms that are at the very core of our humanity. by contrast, _ very core of our humanity. by contrast, autocracies sow the seeds— contrast, autocracies sow the seeds of— contrast, autocracies sow the seeds of their own demise by suppressing their citizens. they— suppressing their citizens. they are _ suppressing their citizens. they are fundamentally rigid and unable to adapt. any short—term gains are eroded in the long — short—term gains are eroded in the long term, because these societies— the long term, because these societies stay the aspiration and creativity that are vital to long—term growth. a country where _ to long—term growth. a country where artificial intelligence acts — where artificial intelligence acts as _ where artificial intelligence acts asjudge and jury, where

there — acts asjudge and jury, where there are _ acts asjudge and jury, where there are no human rights and no fundamental freedoms is not the kind — no fundamental freedoms is not the kind of place anybody truly wants — the kind of place anybody truly wants to — the kind of place anybody truly wants to live. and it is not the — wants to live. and it is not the kind _ wants to live. and it is not the kind of world that we want to build — the kind of world that we want to build. but we cannot simply assume — to build. but we cannot simply assume that there will be a democratic future. there is a real— democratic future. there is a real struggle going on between different forms of society, between democracies and autocracies, and unless democratic societies deliver on the economy and the security that— the economy and the security that our— the economy and the security that our citizens expect, we will — that our citizens expect, we will fail— that our citizens expect, we will fall behind. we need to keep— will fall behind. we need to keep improving and renewing what — keep improving and renewing what we _ keep improving and renewing what we are doing for this new era, _ what we are doing for this new era, demonstrating that democracy delivers. as prime minister— democracy delivers. as prime minister of the united kingdom, i minister of the united kingdom, i am _ minister of the united kingdom, lam determined minister of the united kingdom, i am determined that we will deliver— i am determined that we will deliver the progress that people expect. i will lead a new— people expect. i will lead a new britain for a new era. firstly, _ new britain for a new era. firstly, this begins with growth, and building a british economy— growth, and building a british economy that rewards enterprise and attracts investment. 0ur

long—term aim is to get our economy— long—term aim is to get our economy growing at an average of 25%~ — economy growing at an average of 2.5%. we need this growth to deliver— of 2.5%. we need this growth to deliver investment around our country. — deliver investment around our country, to deliver the jobs and — country, to deliver the jobs and high _ country, to deliver the jobs and high wages people expect, and high wages people expect, and deliver public services like — and deliver public services like the _ and deliver public services like the national health service. we want people to keep more _ service. we want people to keep more of— service. we want people to keep more of the money they earn, so they— more of the money they earn, so they can — more of the money they earn, so they can have more control of their— they can have more control of their own _ they can have more control of their own lives and contribute to the — their own lives and contribute to the future. secondly, it means— to the future. secondly, it means securing affordable and reliable — means securing affordable and reliable supplies of energy. we are cutting off the toxic power and pipelines from authoritarian regimes, and strengthening our energy resilience. we will ensure that we can't — resilience. we will ensure that we can't be coerced or harmed by the — we can't be coerced or harmed by the reckless actions of rogue _ by the reckless actions of rogue actors abroad. and we will transition to a future based _ will transition to a future based on renewable and nuclear energy. — based on renewable and nuclear energy, while ensuring the gas used _ energy, while ensuring the gas used during that transition is from — used during that transition is from reliable sources, including our own north sea

production. we will be a net energy— production. we will be a net energy exporter by 2040. thirdly, — energy exporter by 2040. thirdly, we are safeguarding the security of our economy, the security of our economy, the supply chains, the critical minerals. _ the supply chains, the critical minerals, the food, the technology that drive growth and protect the lives and health— and protect the lives and health of people. we won't be strategically dependent on those _ strategically dependent on those who seek to recognise the global— those who seek to recognise the global economy. instead, we are reforming — global economy. instead, we are reforming our economy to get britain — reforming our economy to get britain moving and we want to work— britain moving and we want to work with— britain moving and we want to work with our allies so we can all move _ work with our allies so we can all move forward together. the free world needs this economic strength— free world needs this economic strength and resilience to push back— strength and resilience to push back against authoritarian aggression and when this new era of— aggression and when this new era of strategic competition. we must _ era of strategic competition. we must do this together, so we are building new partnerships around — are building new partnerships around the world. we are fortifying our deep security alliances in europe and beyond, through— alliances in europe and beyond, through nato and the joint expeditionary force. we are deepening our links with fellow

democracies like india, israel, indonesia _ democracies like india, israel, indonesia and south africa. we are building new security ties with— are building new security ties with friends in the indo pacific— with friends in the indo pacific and the gulf. we have shown — pacific and the gulf. we have shown leadership on free and fair trade, shown leadership on free and fairtrade, striking shown leadership on free and fair trade, striking trade agreements with australia new zealand — agreements with australia new zealand and japan and many others, _ zealand and japan and many others, and we are in the process— others, and we are in the process of exceeding to the british— process of exceeding to the british -- _ process of exceeding to the british —— trans british partnership. ratherthan exerting influence through debt, _ exerting influence through debt, aggression and taking control— debt, aggression and taking control of critical infrastructure and minerals, we are building strategic ties based _ are building strategic ties based on mutual benefit and trust. — based on mutual benefit and trust, and we are deepening partnerships like the g7 and the commonwealth. we must also collectively extend the hand of friendship to those parts of the world that have too often been — the world that have too often been left behind and left vulnerable to global challenges, whether it is the pacific— challenges, whether it is the pacific or— challenges, whether it is the pacific or caribbean island states _ pacific or caribbean island states dealing with the impact of climate change, or the western balkans, dealing with persistent threats to their

stability. the uk is providing funding, _ stability. the uk is providing funding, using the might of the city of— funding, using the might of the city of london and our security capabilities to provide better alternatives than those offered by malign regimes. you are watching bbc world news. we live in new york where the new petition prime minister liz news. we live in new york where the new petition prime minister liz truss news. we live in new york where the new petition prime minister liz truss is news. we live in new york where the new petition prime minister liz truss is addressing delegates at the un general assembly. delegates at the un general assembly-— delegates at the un general assembl . �* , , ., assembly. and being prepared to use unprecedented _ assembly. and being prepared to use unprecedented sanctions, - use unprecedented sanctions, diplomatic action and rapid military support. there's been strength of purpose, we've spoken many times on the phone and we have made things happen. now we must use these instruments in a more systematic way, to push back on the economic aggression of authoritarian regimes. the g7 and our like—minded partners should act economically like

nato, defending our prosperity. if the economy of a