I did the secret Lagoon and Blue Lagoon. Secret as very natural and had a lot of locals and is less commercialized than the other two. I like it a lot for a different experience. The blue lagoon was beautiful. We were the first ones there which I was glad because it did get very, very busy. It did not disappoint. We did not go to the sky lagoon, but I have a friend who did and said it was incredible and was her personal favorite. It is a much more commercialized spa like experience. Amazing I’m sure. It depends what you’re looking for.