Roca Partida

Island Remote volcanic islet famed for big fish scuba diving

In the Revillagigedo archipelago, Roca Partida is a bare volcanic rock popular only with liveaboard divers for pelagic fish, manta rays and clear but deep water-no landing and no facilities.

Roca Partida is a small, uninhabited rock islet in the Revillagigedo Archipelago of the eastern Pacific Ocean, administered by Mexico. It is notable as a steep, isolated volcanic stack rising directly from deep water and is a recognised site for pelagic marine life.

The islet itself offers no landing or facilities; it is visited from dive vessels for world-class pelagic diving with frequent sightings of large fish, sharks and manta rays. Sea birds also use the rock for nesting, and the surrounding deep waters are rich in marine biodiversity.

Roca Partida has been charted by mariners for centuries as a navigational hazard and natural landmark in the Revillagigedo chain; its lack of fresh water and surface area has precluded any permanent habitation. Modern visits are almost exclusively for recreational diving and scientific observation.

Situated in the Revillagigedo Archipelago in the eastern Pacific, Roca Partida lies offshore of mainland Mexico and is one of the archipelago’s more remote and isolated features, reached only by sea.

Diving access and difficulty: Access is by liveaboard dive boats from the Revillagigedo Islands or mainland departure points and is suitable only for experienced divers due to strong currents and deep waters.

How to Get to Roca Partida #

Roca Partida is an uninhabited rock in the Revillagigedo (Colima) group and is accessible only by sea (liveaboard dive boats) or private yacht; there are no regular ferries. Diving expeditions to Roca Partida typically depart from Mexican Pacific ports such as Cabo San Lucas or Manzanillo on multi‑day liveaboard trips.

Tips for Visiting Roca Partida #

Roca Partida is a remote pinnacle in the Revillagigedo/Clarion‑Clipperton region and is only visited by liveaboard dive boats - plan a multi‑day liveaboard with operators experienced in open‑ocean pelagic dives rather than attempting day trips.
There is no landing on the rock and diving there involves strong currents and large pelagic species; only experienced divers with a competent dive guide and proper surface support should attempt dives at Roca Partida.