The Guinness Book of World Records has officially listed a swimming pool with unusual name Y-40 Deep Joy as the world's deepest pool. "Deep Joy" is located in the Hotel Millepini Terme in the small Italian enclave of Montegrotto Terme. The brainchild of renowned architect Emanuele Boaretto, Deep Joy opened in June, 2014.

The indoor pool reaches a staggering depth of 130 feet, approximately the height of a 14-story building, holds 4,300 cubic meters of water and is heated to a balmy 90 degrees F. It features an acrylic underwater walk way, caves, platforms and viewing windows, and is housed in the Hotel Millepini Terme in Montegrotto Terme, a small town in Italy.

The pool was designed for leisure dives, dive training and photo shoots. It even has special caves, ledges and underwater glass viewing panels for spectators who don't want to get wet. Activities at the pool include scuba diving, free diving, aqua fitness, watsu, hydro-kinesi therapy and special activities for pregnant women.

Y-40 Deep Joy replaces the former record holder, Nemo 33, located in Brussels, Belgium, in which one has to descend 113 feet to reach the bottom.