masonii Erigeron socorrensis Eupatorium pacificum Guettarda insularis Hypericum eastwoodianum Ilex socorroensis Lantana involucrata var. socorrensis Lepechinia hastata ssp. socorrensis Meliosma nesites Paspalum longum Peperomia socorronis Physalis mimulus Pleurothallis unguicallosa Salvia pseudomisella Sida nesogena Sideroxylon socorrense (Vulnerable) Verbena sphaerocarpa Vernonia littoralis Brickellia peninsularis var. amphithalassa, Cheilanthes peninsularis var. insularis, Nicotiana stocktonii, Spermacoce nesiotica and Zapoteca formosa ssp. rosei are near-endemics, being restricted to Socorro and Clarión. Whether Teucrium townsendii ssp. affine is the same plant as those on San Benedicto is not conclusively determined. Visiting information Socorro Island is a popular scuba diving destination known for underwater encounters with dolphins, sharks, manta rays and other pelagic animals. Since there is no public airport on the island, divers visit here on live-aboard dive vessels. The most popular months are between November and May when the weather and seas are calmer. November to December are popular months to visit for a good chance to dive with whale sharks. January and February are popular months to scuba dive with humpback whales as they are then migrating through the Revillagigedo archipelago. See also List of volcanoes in Mexico Notes References External links Socorro Endemic Bird Area (BirdLife International) Islands of Colima Pacific islands of Mexico Volcanoes of Colima Volcanoes of the Pacific Ocean Polygenetic shield volcanoes Underwater diving sites in Mexico Endemic Bird Areas