Opened in 2015, the Citystars Sharm El Sheikh lagoon is officially the largest man-made body of water in the world. And beyond its size, this vast pool is remarkable for its location in the middle of the Sinai desert — three miles inland from the famous Sharm El Sheikh resort town.

The saltwater supply comes from otherwise unusable desert aquifers, and takes several weeks to fill up. The $5.5 million beach-fringed lagoon is part of an exclusive gated community, and while it’s declared at 30.9 acres, its official measurement is at 23.9 acres — still comfortably taking the crown from the next biggest pool.

According to osyer