Elizabeth Bay is one of the marine sites on Isabela’s west coast. South of Alcedo Volcano and north of Sierra Negra, Elizabeth Bay is found at Isabela’s narrowest east-west extension where the lava flows of these two volcanoes have connected each other. Elizabeth Bay’s shores show mangroves and specifically the easternmost part, a cove which can only be entered via a narrow channel, has red, white and black mangroves. Different animals prefer different parts of Elizabeth Bay. Las Marielas, three rocks at the entrance to the bay, are favored by Blue-footed Boobies, Flightless Cormorants and Galapagos Penguins as a resting place, while the mangrove area is preferred by Great Blue Herons for hunting or the Magnificent Frigatebirds for perching. The bay is used by turtles, rays and even sharks for feeding or resting. The shallow water and the root system of the mangroves in the small inlet allow smaller fish to hide from bigger predators.