San Benedicto Island, Volcanic island in Colima, Mexico.
San Benedicto Island is a remote volcanic island in the Pacific Ocean, part of the Revillagigedo Archipelago in the state of Colima, Mexico. The island has two visible peaks and a surface of dark volcanic rock with no permanent settlement of any kind.
The island was first documented by Spanish explorer Hernando de Grijalva in 1533, who named it after the saint of the day it was found. In 1952, an eruption from the Boquerons vent reshaped much of the surface and left behind new rock formations that are still visible today.
The island draws divers who come to see manta rays and sharks moving through the open water just below the surface. The marine life here is so present and close that even a short dive feels like entering a world apart.
Reaching the island requires special permits and a trip aboard a licensed dive vessel, as independent access is not allowed. Most boats depart between November and July when conditions on the open ocean tend to be more manageable.
After the 1952 eruption stripped the island of nearly all plant life, native species began returning on their own without any human help. This natural recovery process makes the island a rare place where scientists can observe life rebuilding itself from almost nothing.
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