World's deepest pool includes underwater tunnel and hotel rooms
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.