[2][3] Y-40 "The Deep Joy" pool first opened on 5 June 2014 and was designed by architect Emanuele Boaretto.

It is 42.15 metres (138 ft) deep, which at the time of opening made it the deepest pool in the world.

[1][5] Italian freediver Umberto Pelizzari first measured the depth before the pool was open.

[4] When it opened on 5 June 2014, it was awarded the "Deepest Swimming Pool for Diving" by the Guinness World Records.

Y-40 now stands as the third deepest swimming pool in the world, exceeded only by Deepspot in Poland, and Deep Dive Dubai in the United Arab Emirates.