The Bajau people of Borneo live almost exclusively on boats and experience “land sickness” when they come ashore!
Their nickname is the “sea gypsies.” They mostly live on house boats or houses on stilts built over coral reefs in the ocean. Some of their best free divers can go down 20 meters and stay for a few minutes.
Studies have shown that the Bajau children have impressive eyesight underwater, because their eyes have adapted to the liquid environment! Their diet consists mostly of fish, so free diving is very important for them.