Expedition leader, Kevin Martin, and passenger Irene Wicklund, Isla San Francisco, Sea of Cortez, Baja California Sur, Mexico.

Safari Quest passenger Irene Wicklund displays a salt-encrusted hard rock "hamburger" at the salt flats on Isla San Francisco, Sea of Cortez, Baja California Sur, Mexico.

Grey pelicans and blue-footed boobies perch atop a guano covered cliffside, Isla San Francisco, Sea of Cortez, Baja California Sur, Mexico.