The water at Bahia De las Aguilas is truly amazing. Not only is it crystal clear, but it also felt really comfortable swimming in it. Takes a bit of effort to get there, especially when hitch hiking, but it is totally worth it!
The great sand dunes national park in Colorado, pretty awesome to have a tiny dessert right next to a big mountain range! The blowing sand gets stopped from the peaks and then piles up into the dunes in front of them. We slept a night in the tent on the dunes