Y-40 The Deep Joy is considered as the world’s deepest swimming pool. It now holds that Guinness Book of World Record for deepest pool at 137 feet. It is mostly a pool for free divers and scuba diving training and refresher skill practice as well as for those who just want to go for a really deep swim. The deepest swimming pool record used to be held by the Nemo 33 indoor swimming pool in Brussels, Belgium at 113 feet. This pool was designed by Belgian diving expert John Beernaerts for multi-purpose diving instruction and underwater film production. Y-40 The Deep Joy is located at the Hotel Terme Millepini in Abano-Montegrotto Terme, Padua, Italy. If measured in total surface area, it is around 21×18 meters with a maximum depth of 137 feet with various intermediary depths and caves for technical activities. The swimming pool contains 4300mc of thermal water – the equivalent of some 1 million gallons of water – kept at a temperature of between 32-34°C so people can swim and dive in just normal swim wear rather than having to wear a wetsuit.
The water comes from an underground thermal well so no chemicals are needed to keep the water clean. While hotel guests can swim anytime in the pool, it is more dedicated to the training of free divers and scuba divers. It also offers services for movie sets with areas for photographic services. It even has an area for deep underwater professional exercises. The Y-40 was designed and built by architect Emanuele Boaretto for the Boaretto Group Hotel and Resort. It was opened in June 5, 2014 and was personally measured by world record free diver Umberto Pelizzari and world scuba diver Enzo Maiorca. The pool in the Hotel Terme Millepini is at the hotel’s park; the hotel is a four-star hotel that also includes thermal swimming pools (aside from the Y-40), spa, wellness center, and thermal treatments. The hotel is also popular for its famous restaurant and the beautiful environment of the Europe Hall that houses events ranging from entertainment to cultural shows as well as weddings.
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Some underwater weddings have already been held at Y-40. At every level the pool has a different swimming or diving experience set up. For instance, there is an artificial underwater cave so divers can simulate being in one should they encounter it at sea. Extreme divers can test their mettle by diving the full depth of the swimming pool all the way to the bottom. The pool’s 137 feet is the length of three large school buses. For visitors who don’t want to swim, there is access from the hotel of underwater tunnels where people can view what’s going on underwater. Renowned world divers such as Ilaria Molinari have actually used Y-40 for diving and training purposes. So if you’re ever in Italy, you can find out why this pool literally drowns out any other swimming pools out there.