During the nesting season, the state government collects thousands of newly laid olive ridley turtle eggs from 40km of beach, incubating them and releasing the hatchlings when they emerge seven weeks later. At this center located about 3km northwest along the single street from the lighthouse (taxis charge M$25), you can stop in to see the turtle nursery. To volunteer with beach patrols and hatchling release, contact San Cristóbal-based Nataté .