Cancun, Mexico is a famous diving spot, in addition to rich fish and corals, and the largest underwater museum in the world. There are about 400 sculptures made of ecological concrete. This ecological concrete can be made into an ecologically uneven surface so that a large number of marine organisms can attach to these surfaces and provide food for those marine life.  Growth conditions can protect their ecological environment. After the museum was built, it attracted visitors from all over the country and also reduced the tourist pressure for the national park on the west coast of the Caribbean.  From Cancun, you can sign up for a day trip. The water is about 8 meters deep, and the surrounding water quality is very good. You can see the snorkeling deep dive. In addition to human sculptures, small houses, cars, etc., it is a very special experience.