Islet of El Farallón Nature · San Javier, Mar Menor, Murcia Image of San Javier, not of the place itself. Small rocky islet of volcanic origin located east of Isla Grosa, off the coast of San Javier, near La Manga del Mar Menor. Nearby lies the shoal known as the bajo de la Campana, a rocky outcrop just a few metres below the surface that for centuries posed a danger to navigation in the area. Photo: Enrique Freire from Cartagena, Murcia, España (CC BY 2.0) What to see and do in San Javier