Plaza Island is a popular site among visitors. Red-billed tropicbirds and swallow-tailed gulls are some of the many birds that can be found nesting along the cliffs, and a large colony of land iguanas can be found on the island. The South Plaza land iguanas are the smallest in the archipelago. Marine iguanas are also abundant, and an occasional hybrid between a marine iguana and a land iguana can be seen on the trail. Approximately 1,000 sea lions inhabit the island. South Plaza is also home to the beautiful succulent Sesuvium, which changes from bright green in the rainy season to red, orange, and purple during the dry season, and the landscape is dotted with prickly pear cactus trees.