World’s Largest Swimming Pool
The largest swimming pool in the world is an infinity pool overlooking the Pacific Ocean in San Alfonso del Mar in Chile. The saltwater pool is 30,000 feet long (1,000 yards), covers more than 20 acres, has a 115-foot deep end, holds 66 million gallons of water, and cost $1.5 billion to build and $4 million a year to maintain. And the San Alfonso del Mar pool took more than five years to build.
World’s Deepest Swimming Pool
Coming in second is the deepest pool in the world, the Y-40 Deep Joy, 131 feet (40m) deep, located at the hotel Millepini Terme in Montegrotto Terme, Italy. Y-40 cost $1 billion to build and holds over 1 million gallons of water pumped in from local springs.
Deepest Swimming Pool for Diving Instruction
The following video shows the deepest diving instruction “swimming pool” in the world, NEMO 33, a container filled with 2.5 million liters of non-chlorinated spring water in Brussels, Belgium. The pool is 113 feet (34.5m) deep, has underwater caves and is used for diving instruction.