‘nemo 33’, a diving center home to the deepest pool in the world in brussels image © peter rigole

located in brussels, belgium is ‘nemo 33‘, a diving center accommodating the world’s deepest swimming pool. the pool, filled with 2,500,000 litres of non-chlorinated, highly filtered spring water, has two large flat-bottomed areas reaching depth levels of 5m (16 ft) and 10m (32 ft), and a large circular pit plunging to a distance of 33m (108 ft).

the water is kept at a temperature of 30°C (86°F) and features numerous simulated underwater caves at the 10m mark, as well as various submerged windows that encourage outside visitors to look into the structure at different depths. the facility was designed by belgian expert diver john beernaerts, an idea that was spurred by beernaerts’ desire to mimic the conditions of bora bora in his home country, achieving this through three years of study and testing 21versions. the outcome was a multi-purpose diving instruction, recreational, and film production complex.

the pool is filled with 2,500,000 litres of non-chlorinated, highly filtered spring water image courtesy of nemo 33

the water is kept at a temperature of 30°C (86°F) and features numerous simulated underwater caves at the 10m mark image © flyingdivers

images courtesy of nemo 33

a video demonstrating diving in the deepest pool in the world