Poland is set to open the world's deepest swimming pool.
The Deepspot diving pool in Msxczonów will be 45m deep, and filled with 8,000 cubic metres of water - the equivalent of 27 Olympic-size swimming pools.
What's more, it will will also include a large underwater tunnel, and several hotel rooms.
Sound like the kind of place you'd like to take a dip? Find out more in the video above.