Revillagigedo

The Revillagigedo Archipelago, also known as Islas Revillagigedo, is a remote group of four volcanic islands and several islets in the eastern Pacific Ocean. Located about 390 kilometers (roughly 240 miles) southwest of the Mexican mainland, off the coast of Colima and near the state of Jalisco, the archipelago comprises four main islands: Socorro, San Benedicto, Roca Partida, and San Miguel. Socorro is the largest and, aside from a small resident population, the only inhabited island.

Geographically, the archipelago is of volcanic origin and sits along the complex plate boundaries in the northeastern Pacific. The islands feature rugged coastlines, cliffs, lava fields, and cratered interiors. The surrounding waters are deep and tectonically active, producing a strong marine upwelling that sustains rich pelagic life. The archipelago’s isolation and dynamic ocean environment contribute to its distinctive ecological character.

Ecologically, the Revillagigedo Archipelago is notable for its biodiversity and status as a protected area. The surrounding marine zone supports large pelagic populations, including sharks, manta rays, dolphins, and migratory species such as humpback whales. The area is designated as a Mexican national park, with a focus on conserving both the islands and the extensive marine ecosystem. Tourism is limited and regulated to minimize environmental impact.

Historically, the archipelago was named for the Count of Revillagigedo, a Spanish administrator who governed New Spain in the late 18th century. The islands have long served as a navigation landmark and, in modern times, as a site of scientific research and regulated ecological tourism.