Diving Is Totally Allowed In The World's Deepest Swimming Pool

God help you if you have to get your PADI certification in a public pool -- you're about to spend more than a few hours steeping in all sorts of fun bodily fluids. You're better off buying a plane ticket to Brussels, home of the deepest -- and likely cleanest -- indoor pool in the world.

Diving enthusiast John Beernaerts began developing the idea for a super-deep indoor diving facility in 2001. Taking inspiration from favourite diving locales in his home country of Bora Bora, Beernaerts spent three years examining 21 potential designs. In 2004, Nemo 33 opened as a multi-purpose instructional, recreational, and film production facility in Brussels, Belgium.

The Nemo 33 is a 2,500,000L multi-level swimming pool filled with chlorine-free, potable spring water heated to a toasty 30°C. The pool structure flattens out at depths of five and 10 metres to feature simulated underwater caves. Dry visitors are afforded port holes at both these depths to explore the terrain before they dive.

However, Nemo 33's most prominent feature is its 33 meter (108 foot) deep sinkhole. It is the only place on Earth -- outside of the open ocean -- that permits such deep dives. As such it's used extensively in scientific testing as well as military training exercises. In fact, during the facility's seven year operation (and after nearly 200,000 dives), the only accident to occur in Nemo 33 happened when a Belgian Special Forces member punctured both his lungs after failing to observe the prescribed ascent rate. [Like Cool - Design Boom - Nemo 33 - Image: Sergey Markov]


    "It is the only place on Earth — outside of the open ocean — that permits such deep dives."

    I guess you haven't heard of quarry diving like NDAC in Chepstow England with depths over 80m and all fresh water too. Still cool though just picking at your facts you talking bout my profession bro.

      "oh, look at me, I'm a diver. Yep, thats my proffesion."
      "what, me? yep, I'm a diver. no, no pictures please... oh, ok, just one!"

        um your comment makes no sense I was just being informative on a topic i well informed in.
        But hay wouldn't be the internet without trolls.

          Hay is what horses eat. Sorry just informing you on a topic you clearly didn't know. (not everyone is perfect and stop nitpicking.)

    What an amazing place! awesome underwater playground

    Amazing , really? ......er isn't it missing the amazing stuff.....sea life.....currents......swell ..... swimming into a sterile CONCRETE "cave" is hardly preparation for swimming into a large lime stone cave network full of fish, sea plant life, possibly bigger bitey things! The ocean is an underwater playground, this is a glorified swimming pool.....cool.....but still a training swimming pool.

    I wonder how they manage to lay down the tiles in the sink hole??

    Yep, many fresh water places are deeper... Maybe they should have just stopped with comparing to other swimming pools..

    My girlfriends handbags deeper than that!!

    I would KILL for a training facility like that. Training is training. If you're going to do cave diving, this is the perfect thing to perfect movement, kicks and drills, without the danger of silting.

    Ever tried practicing a backwards kick with a current? Just not gonna be a happening thing.

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