now it's time for a look at the weather with lucy martin. hello there. sunday brought a day of sunny spells and scattered showers. as we go through tonight, we continue to see a feed of showers and a few spells of rain across scotland, northern ireland, northern england and eventually into northern wales into the early hours. to the south of that, though, it's a largely dry picture with patchy cloud and clear spells. temperatures fairly similar to where they've been over the past few nights, sitting between 8—13 celsius. tomorrow, then, a fairly blustery start to the day across scotland, northern ireland, northern england, the winds tending to ease across northern ireland and northern england. a mixture of sunny spells and showers to be found here, although fewer showers than we've seen on sunday. for central, southern england and wales we'll see a band of cloud slip its way south, but sunny spells following on behind, with temperatures at a maximum of 23 celsius. and then a quick glance at the week ahead — temperatures are going to pick up across the board, but particularly in the south. take a look at the temperatures

in london towards the weekend — getting up to 27 celsius by sunday.

hello, this is bbc news. the headlines: several people have been killed after shots were fired at a shopping centre in copenhagen. police say a 22—year—old man has been arrested. six new claims of inappropriate behaviour by former deputy chief whip chris pincher have emerged — days after he was suspended as a tory mp after allegations he groped two men. russia says it now controls the whole of the luhansk region in eastern ukraine. officials in turkey say customs have detained a russian cargo ship carrying grain — which ukraine says is stolen. the number of people being admitted to hospital with covid will continue to rise, according to the head of the uk health security agency.

and british number one cameron norrie is through to his first wimbledon quarterfinal. now on bbc news, the travel show. this week on the show... i am in mexico to discover how a river cleanup is getting on, and meet this little local. this is so incredible! simon's here with tips on how to carry on travelling despite the cost of living crisis. i'm travelling by train through germany, on what i regard as the best rail deal ever. and a day trip to a thai prison anyone?

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. 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?

i mean, having grown up here in this area, how do you feel when you notice all these changes? but the problem is much bigger thanjust tourism. these wetlands are the lungs of mexico city, and provide the capital with around a third of its drinking water and a huge amount of food. 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.

but even out here in the more remote areas of the wetlands, the pollution is endangering one of mexico's most iconic animals. the strange looking but much loved axolotl. what's so special about these little creatures? i can't believe this is happening. i'm about to hold an axolotl! oh my god, it is so smooth,

it is so lovely, it's like holding a baby! the axolotl is not only endemic to mexico, its population is limited to these wetlands. and the worsening pollution is threatening its very survival. this is the most incredible thing i have ever done in my life. 0k, put him back! thankfully the conservation project armando runs here has been a great success, and as a result axolotl numbers are now increasing across the wetlands. armando's work is brilliant, but to fully restore the area to its former glory, ultimately the pollution needs to be tackled.

luckily my friend professor rodriguez—vasquez mayjust have identified a simple but effective solution. in a rather basic looking lab in the wetlands, her team have invented a system that produces tiny bubbles called nano—bubbles, which can be pumped into the polluted water. how does the science behind this actually work? yeah. we create the nano—bubbles with solar energy, so these nano—bubbles can attack or can destroy the contaminants. as well as tackling the pollution, these nano—bubbles also help to oxygenate the water, breathing life again into the waterways. honestly your lab looks, everything here looks pretty simple. yeah, it is very simple. it is very cheap, and also very easy to manage.

that is the best kind of technology, right? when it is simple, straightforward, accessible and sustainable. exactly, sustainable. and what's even more encouraging is that this simple but effective technology can be used on trajineras, so the tourist boats can be a part of the solution in the fight against pollution. that's the button that starts it all? all right, let's do it! ready? yeah. you can see the nano—bubbles. oh, it's working! that's so cool! it's amazing to think that this piece of tech is actually cleaning the 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 that's got to be good news. and if you're planning a trip here any time soon, here's a few things to think about. in western mexico, the world's largest gathering of mariachi bands will come together on 30 august to kick off a two—week festival dedicated to the country's most traditional folk music. the celebrations will begin with a huge parade through the city of guadalajara where mariachi bands from as far away as japan will all play together.

you can expect workshops, lectures and plenty of inescapable impromptu performances throughout the city for the duration of the festival. if you prefer the calm of the ocean, why not explore the second largest barrier reef in the world? the mesoamerican barrier reef runs along the caribbean coastline of the yucatan peninsula and is home to 66 species of coral, several hundred species of fish, as well as sea turtles, dolphins and whale sharks. rememberthough, reef environments are fragile to human impact, so be sure to dive with a responsible provider. for six days from 14 october, some of the world's finest classic cars will be covering over 3,000 kilometres on a route from oaxaca to durango for la carrera panamericana. celebrating its 35th year, the pan—american race is one of the most important and longest road rally type races in the world. it used to be dubbed the most

dangerous, but safety standards have come a long way in recent years. and of course if you are in mexico on 1—2 november, then you won't be able to avoid one of the country's guest event. more commonly known as the day of the dead, or dia de los muertos, the national holiday honours the deceased and many believe that on this day, the border between the spirit world and the real world dissolves, and so relatives often spend the night by the graves of their loved ones. stay with us, because still to come: simon has some cost—saving travel tips. if you are flying, then try to travel with cabin baggage only. and thailand opens its prison doors to tourists. so don't go away.

hello and welcome to this month's guide. well, summer is here and many of us are desperate to get away. but with rising costs and tricky travelling, the prospect can be off—putting. after some scenes of airport chaos, airlines have trimmed millions of seats from their planned summer schedules, causing fares on some popular routes to soar. so, consider going by sea. britain has excellent ferry links to france, spain, the netherlands and ireland. there is loads of capacity this summer and you can get some really good rail sale deals, such as about £40 one—way from many british stations to ireland — and you get a generous baggage allowance. if you are flying, then try to travel with cabin baggage only.

i managejust with this, and it meets all known airline rules. you won't need to queue up to check—in, there is no chance of your bag being sent to the far side of the earth, and no need to wait around at the carousel at the far end when you should be beginning your adventure. best of all, you'll save cash. and choose your day of travel carefully. for holiday flights, saturday and sunday are in strongest demand with friday and monday also busy. tuesday and wednesday are likely to see the lowest fares and the thinnest crowds. many viewers have been in touch about car rental rates. yes, they are higher than ever this summer. during the pandemic, many car rental firms sold off their fleets and now, they cannot get enough vehicles to match demand. so, choose somewhere with excellent public transport to stretch your holiday budget.

along spain's costa blanca and costa del sol, as well as the portuguese algarve, there are excellent coastal railways with frequent trains and subsidised fares making them excellent value. almost anywhere in asia, from eastern turkey to singapore, public transport is cheaper, more reliable and safer than self—drive. choose the train when you can, such as the amazing line through uzbekistan, paralleling the silk road from bukhara to samarkand and on to the capital tashkent. if you are on the road, simply choose the highest category of coach you can afford. america is in love with the highway but increasingly, the cities have reliable public transport connections such as the brightline link from miami via fort lauderdale and soon opening all the way to orlando. and long—distance buses

are making a comeback with one firm promising a privatejet experience on the four—hour run from washington to new york city. this summer, i'm travelling by train through germany on what i regard as the best rail deal ever. in the entire month ofjuly or august, you payjust nine euros for a ticket, taking you anywhere in the country on all but the fastest trains. the ticket is also valid on city transport, meaning you can experience the amazing dangling tram of wuppertal — the closest public transport gets to a theme park ride. to stretch your holiday funds the furthest, though, swap the med for the baltic beaches of eastern europe. a trip to the coast of poland, lithuania, latvia or estonia is surprisingly affordable. and the black sea coastline

of romania and bulgaria also offer outstanding value. going west, canada is significantly cheaper than the us, though in both nations, remember, you are now expected to tip 20%. for further fun adventures, wait until later in the year for tropical sun at affordable prices. two favourites of mine are the beaches and heritage of kerala in southern india and the long—time backpacker favourite vietnam. airfares in november in the uk are barely half what they are in peak summer. well, i hope some of those ideas have stimulated your travel appetite, whether you are hoping to warm up or cool off this summer. where there is a will, there is a way. good luck. thanks, simon! ok, next up, we're off to thailand where the government

is slowly turning some of its prisons into tourist attractions. rayong central prison, close to the capital bangkok, one of the first to open and we've been given special permission to go along and film there to check out what tourists can expect to see.

thailand has traditionally treated prisons as no—go areas. they're not terrible sanitary, they're usually overcrowded. i think that the department of corrections wants to be seen as, you know, joining a wider coalition of government agencies encouraging tourism, encouraging people to come back to thailand. they're certainly going to have to somehow improve conditions in some ways — at least on the surface — but the question is whether anything really changes.

well, that's it for this week, but coming up next time... we're in sydney as its most iconic landmark celebrates its 90th birthday. never gets old. this is amazing. and we hear about its role in bridging the gap between australia's different communities. more australians are supporting that the aboriginal flag sits atop of the sydney harbour bridge. if you can't wait for that, check us out on social media. search bbc travel show on facebook and instagram and look for the little blue logo. until then, from the chaos of xochimilco, safe travels and i'll see you very soon. bye— bye!

hello there. sunday brought a day of sunny spells and scattered showers. through the week ahead, we're going to see the temperatures picking up, particularly in the south, with many of us seeing more in the way of dry weather as high pressure gradually builds its way in from the south and west. the exception to that, the far north and west where we'll see weather fronts just flirting with the north of scotland could bring some wet weather at times and some blustery conditions. and that's certainly what we've got as we go overnight into monday, fairly blustery across the north and west of scotland in particular, scattering of showers for scotland, northern ireland, northern england and feeding into the north of wales into the early hours. to the south of that largely dry with patchy, cloud overnight lows of 8 to 13 celsius. as we start the day tomorrow, then, a scattering of showers

across scotland, northern ireland, northern england, fairly blustery to begin, but the winds tending to ease across northern ireland and northern england. across central southern england and wales there will be a band of cloud to begin with. could just bring the odd isolated shower as it slips south, but sunny spells coming through. temperatures sitting into the mid to high teens for many, a maximum of 23 degrees celsius. here's how it looks as we move into tuesday. that area of high pressure edging its way further in, but the weather front just toppling around the top. so a bright start away from the west for many, but cloud will tend to feed in as we move through the day on tuesday. the potential for one or two showers for northern and western areas, particularly into the north west of scotland later in the day. temperatures at a maximum of 23 degrees celsius in the south east. as we move into wednesday, then, high pressure continues to work its way in. this weather front does look like it could bring a spell of wet weather for a time. so a wet start to the day for northern ireland, scotland, northern england. that rain gradually sinking its way south, but not a great deal of rain

on it by the time it gets into southern parts of the uk. so a largely dry day to be found here. plenty of cloud around, but some bright or sunny spells at times. temperatures starting to pick up, generally sitting in the high teens, low 20s, a maximum of 2a degrees celsius — and then into the second half of the week, this map shows the temperatures in relation to average across oui’ shores. you can see that orange colour. so we're going to see the temperatures picking up for the second half of the week, and you can see that here on the outlook for edinburgh and belfast, sitting in the high teens, low 20s, but for cardiff and london getting into the mid to high 20s later in the week. bye— bye.

this is bbc news with the latest headlines for viewers in the uk and around the world. in denmark, several people have been killed in a shooting at a shopping centre in the capital copenhagen. suddenly we heard shots. i think there were ten. we ended up in a toilet would be all huddled together. there were about i! of us. we were so scared. it has just been a terrible experience. police say a 22—year—old danish man has been arrested in connection with the attack. ukraine's military confirms it's withdrawn its troops from the embattled eastern city of lysychansk, following a sustained russian offensive. a russian cargo ship carrying ukrainian grain is detained off the coast of turkey.