. >> reporter: the tourism boom turned haukur einarsson into a tour guide.usiness, glacier adventures, has replaced the old family farm. so this was a cow farm? >> yeah, just three years ago. we used to milk up to 34 cows here every day, twice a day. >> reporter: is this better than milking cows? >> it's different. >> reporter: but haukur is serious about making sure tirists, like elissa zimmerman... >> you want to be able to witness it with your own eyes instead of reading about it in a book or hearing about what was. >> reporter: haukur says his job is to make visitors get an appreciation for how quickly the scenery in those photos is changing. >> we are able to influence them in a good way, open their minds and send them home with some thoughts. so that's kind of how i see it, as an opportunity. >> reporter: ben tracy, cbs news, iceland. >> yuccas: so much to think about. next on the c "cbs weekend news" the navy krystens its newest ship in honor of a gay-rights pioneer. >> yuccas: today in san diego, the u.s. navy christened its latest ship after a champ

haukur is a horse farmer, and every spring, when the lambing season is done, he and many other farmersend their summers roaming free in the highlands and valleys of iceland. it is very good for their upbringing. they live there with big herds, and they learn the most in the herds, the behaviour and how to survive, to walk in the landscape, all this stuff. haukur is part of a collective of farmers who run a tour company called islandshestar, which gives tourist like me the chance to be a cold cowboy, and find out what makes these horses so special. 0n the back of an icelandic horse, looking out at this landscape, it's not terrible, is it? icelandic horses have been bred over the years to be friendly and trusting of humans, which means you can travel across the countryside in a unique fashion. the way we travel, when we are travelling with our horses is that we have this heard of loose horses with us. they are there that we can stop and swap, you know, so we are always having a fresh horse so we can keep up the tempo, we ride a bit faster. we ride, stop, swap, go. we could go on forever,

haukur is a horse farmer, and every spring, when the lambing season is done, he and many other farmers harsh terrain but it gets you across it quickly and comfortably. the tolt, it feels like you are sitting on a soft sofa. they are very, very smooth. only one foot at the time is on the ground so they are kind of moving like a fast walk, actually. we reach the final leg of our ride and to complete it, we have to cross an ancient trail which goes straight across this lake. but as we swap our horses in preparation for the task ahead, we receive a norse omen in the shape of a sea eagles. we have a lot of old beliefs here, superstitious a little. the ravens know a lot, the eagle is very important, he is watching over us a little and bringing us luck. that is what i believe in at least. and with that piece of good news, it is time to hit the water. that was incredible. sighs. absolutely dashing across the water on horseback, surrounded by these beautiful mountains. i think it�*s one of the most exhilarating things i have ever done in my life. as autumn moves out, signs of winter begin to mo