Swimmers wanting to fetch something off the bottom of this pool will certainly need more than a lungful of air - seeing as it's a staggering 113 feet (34.5metres) deep.

Located in Brussels in Belgium, Nemo 33, the world's deepest swimming pool, contains a whopping 660,500 gallons (2.5million litres) of non-chlorinated, highly filtered spring water that is kept at a temperature of 30C (86F).

It takes the phrase 'being thrown in at the deep end' to a whole new level.

The pool consists of a submerged structure with flat platforms at various depths and has two large flat-bottomed areas at depth levels of 16feet (5metres) and 33feet (10metres), and a large circular pit that has a depth of 108feet (33metres).

It also holds several underwater caves at 10metres deep.

The venue, with its simulated underwater caves, varying depths and constant toasty temperatures, is the perfect place for both novice and more experienced divers.

And for those divers and instructors that need more time at the bottom, there are three pressurised rooms at -30 (-10metres) and -23metres (-7metres) with constantly renewed air.

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