The Poseidon Resort is an underwater hotel constructed in 2010 that offers suites both underwater and on small private islands. The underwater suites maintain surface level pressure so guests are never exposed to water pressure and include king beds, mini libraries, high tech TVs, and jacuzzis. It is accessible via elevator and allows guests to spend the night 40 feet underwater in luxury, with the first 1000 guests having their names engraved on monuments.