San Alfonso del Mar, Algarrobo

Also known as: World's Largest Swimming Pool. San Alfonso del Mar in Algarrobo is renowned for its massive man-made lagoon, stretching over a kilometer along the Pacific coast. This engineering marvel offers a unique beach experience, with crystal-clear waters perfect for kayaking and sailing. Travelers frequently mention the stunning views from the surrounding apartments and the vibrant atmosphere of the nearby beach clubs. The lagoon's size and clarity make it a favorite backdrop for Instagram-worthy moments. WanderVlogs provides insights into the best activities around the lagoon and shares tips from visitors on how to make the most of a day at this extraordinary attraction.

Last updated: Jul 5, 2026

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