The children of the Thai tribe are able to change the shape of their eyes and see underwater - in danger - voila! tourism. An experiment conducted on the subject found that we too can adapt this skill to ourselves.
The tribal people living in the Andaman Sea archipelago on the west coast of Thailand are also called "sea nomads" They subsist entirely on what they find in the ocean, using simple tools such as nets and spears to search for food. As a result, the tribe's children taught themselves how to see perfectly underwater.