Hidden Beach (Playa del Amor), Marietas Islands

Hidden Beach, known locally as Playa del Amor, is a circular pocket of pale sand enclosed within a collapsed volcanic crater on the Marietas Islands, a UNESCO Biosphere Reserve in the Bay of Banderas off the coast of Jalisco, Mexico. The beach is reachable only by swimming or kayaking through a roughly 200-meter tunnel carved through the rock, which opens into the crater's interior where a turquoise, remarkably clear pool sits open to the sky above but hidden from any view at sea level. There is no natural sand access point and no amenities on the beach itself; every visit happens as part of a licensed guided tour, which is the sole legal means of entry to protect the fragile reserve. The water inside the crater is calm and shallow, ideal for a brief swim, while the surrounding islands offer excellent snorkeling around coral and rocky reefs rich with tropical fish. The islands are also a major seabird nesting site, home to blue-footed boobies and frigatebirds, visible on the boat approach and around the cliffs. Because entry numbers are strictly capped by conservation authorities and access requires swimming through the tunnel at the right tide, most tours include only a short window at the beach itself as part of a longer day that covers snorkeling stops elsewhere in the archipelago. The islands sit roughly a 90-minute boat ride from the Puerto Vallarta marina, and tours typically depart in the morning to take advantage of calmer sea conditions.