Hydropolis is the world's first luxury underwater hotel. It is under construction. Joachim Hauser is the developer and designer of the hotel. He said that Hydropolis is not a project. It is a passion. It has already been compared to both a jellyfish and a sea turtle.

The land on which this project Hydropolis is being built belongs to His Highness General Sheikh Mohammed Bin Rashid Al Maktoum, Crown Prince of Dubai. Around 150 firms are involved in this project. It is one of the largest contemporary construction projects in the world, covering an area of 260 hectares.

The project is divided into three sections. One is the land station. Land Station is the complex where the visitors are welcomed first. It is a large building with roof that dips and rolls like peak of the wave. Second one is the connecting tunnel from which people start their journey to the hotel. This tunnel is 1700 ft and carries a train beneath both the land and sea.

Third and last section is destination, the hotel itself. The hotel is shaped like bubbles. There are curves which are designed to provide maximum resistance against pressure of sea water as well as occasional typhoon. It features a pair of observation domes which allow an expansive view of the water and the creatures that live in it. They are large enough to emerge above the waves, and one is planned with a retractable roof allowing people to be surrounded by the ocean while looking directly into the sky.

Hydropolis reproduces the human organism in an architectural design. There is a direct analogy between the physiology of man and the architecture.