At first glance, it appears as if a group of people are trapped at the bottom of this pool, but it’s just a clever illusion by Leandro Erlich at the 21st Century Museum of Art of Kanzawa, Japan. The installation is called “Swimming Pool” and basically utilizes a thin piece of glass with water running over top of it to create the illusion of being underwater. Continue reading for more images, another video and additional information.

Twisted Sifter says, “Complete with a climbing ladder, swimming pool is a fun and interactive installation that creates the illusion of being underwater whilst remaining completely dry.”