Translation of tentación

Thanks a lot. Today and tomorrow are holidays in Switzerland, but I'll do it Tuesday first thing in the morning...please have a look at it and confirm. Where do you want me to place a reference?
The place I have been to is famous for its many language schools. People come from all over the world to learn Spanish and practise their language skills. I guess there are more than two hundred schools there.
We walked by waterfalls and rivers, but the water was too cold to swimm in. The hike made us tired and we were in the valley, which meant that we had to climb up again. The climb was difficult.