A 45.5-metre (150-foot) deep diving pool with artificial underwater caves and Mayan ruins, the world's deepest such structure, opened near Warsaw this weekend.

Source: Manila Bulletin (https://mb.com.ph/2020/11/23/worlds-deepest-diving-pool-opens-in-poland/?utm_source=rss&utm_medium=rss&utm_campaign=worlds-deepest-diving-pool-opens-in-poland)