This grouping of 4 islets, called the four brothers (cuatro hermanos) is located on the southeast coast of Isabela. The boat trip from Puerto Villamil is approximately 1.5 hours, depending on sea conditions. This site is only accessible when the sea is not too rough, as the water entry along the rocks may then be too difficult. The dives are done along more or less steep walls, with currents of very variable intensity. Since the currents are very present, large pelagic fauna can be observed there frequently. It is possible to observe different species of sharks and rays, sea turtles and sea lions. This site is not visited by diving cruises.