pools
Hotel: San Alfonso del Mar, Algarrobo, Chile

Why It’s Cool: You can take small sailboats out on this saltwater pool that Guinness World Records calls the largest in the world. At two thirds of a mile in length, the massive stretch of water has room for several man-made sand beaches. For nighttime swimming, head to the temperature-controlled beach inside the pool’s centrally located glass pyramid—the water and the sand are heated.

Amazing Hotel Pools Slideshow

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