Adult green sea turtles (Chelonia mydas agassizii) underwater off the west side of Isabela, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

chelonia mydas isabela island galapagos islands underwater marine life ecuador south america ocean wildlife conservation swimming coral natural habitat ecology biodiversity nature turtles sea environment aquatic fauna flora marine ecosystem island tropical conservation area adventure exploration snorkeling diving underwater world oceanic coastal habitat marine species reptile ecological importance nature reserve touristic site lagoon ocean depths tropical waters