In 1996 after learning to dive in blue lagoon John Beernaerts got a thought to recreate the conditions of Bora Bora islands in Brussels, Belgium. 7 years of construction and 3,2 million euros spent on Beernaerts’ design and on the 1st of May 2004 the efforts resulted into the opening of the first deepest diving pool in the world – Nemo 33. The name came from a combination of Jules Verne’s book – Captain Nemo and the pool’s maximum depth mark.
Its maximum depth is 33 meters (108 ft) and it contains 2.5 million liters of non-chlorinated, highly filtered spring water maintained at 30 °C (86 °F). The pool also holds several simulated underwater caves at the 10 meters (33 ft) depth level.
There are numerous underwater windows that allow outside visitors to look into the pools at various depths. The pool is not only used for diving but for drills, scientific experiments and even movie making.