✔ 最佳答案
I've been to Cozumel, Key West and Aruba. What do you want to know?
If you are looking for something interesting to do in Cozumel, do a tour through the ship that takes you snorkeling in a Cenote, but not if you are claustrophobic. It's an amazing tour.
At Aruba, google "Aruba trikes". They are basically 3 wheeled motorcycles. Very interesting and fun tour.