Countries such as the United States, Japan, South Korea and United Arab Emirates have all explored the concept of living under the sea. People can already sleep in under sea hotels in various parts of the world. As people explore how to colonize the stars, they are also examining how to live in the sea. The ability to live under the ocean may also help us to be able to colonize planets and moons that are under the oceans. More and more companies and countries are competing to have the best plans for living under the ocean. Who will win the ocean city race is yet to be seen?
One company in Japan called Shimizu estimates they can buld an undersea city for a cost of 26 Billion Dollars off the coast of Tokyo. Over a thousand people would live inside a sphere underwater.
Samsung from South Korea has imagined their own liveable city under the ocean that would also operate inside a sphere.
Dubai has built an Atlantis Hotel that goes underwater.
This is an under sea resort being planned in Fiji.
Here is a plan for a underwater florida resort.