San Marcos Island and Santa Rosal#237;a Lindblad Expeditions
28/03/2018#0183;#32;Today we started exploring the beautiful San Marcos Island, located fairly close to the peninsula. San Marcos is one of the few islands in the Sea of Cortez with a resident human population. Yes, there is a gypsum mine near its southern end and a small company town of less than five hundred people live there.