This isn’t your Aunt June’s backyard pool The Guinness record-holding, man-made “lagoon” measures 3,324 feet in length and covers over twenty acres at the San Alfonso del Mar resort in Algarrobo, Chile. Now that’s a pool.

This bad boy comes with nothing but surprises. It’s not chlorine, as I first suspected. It’s actually a patented technology that filters the nearby ocean water so well, that it’s reported you can see up to a a hundred feet down (although, the pool isn’t that deep). How about jumping aboard a sailboat after a stroll along its white sand beaches? If that’s not cool enough, dust off the scuba gear, and practice up before heading into the open water only feet away.

It’s still a pool, remember? A pool so big, it has its own docks (this recent photo spread from the Chicago Tribune proves it). I guess the term “lagoon” is a bit more appropriate then, eh?