Isla del Sol is a small island located on the Bolivian side of lake Titicaca. It’s like a hippie island, where the only noise you can hear is the sound of the waves, the wind and people playing instruments, which is the music from the video. It was recorded from the group on the first take.
This was filmed between March 2 and March 4, 2016.
Here is an album with some photos from the trip: https://www.flickr.com/photos/claudiobdlv/albums/72157665692361611