Cerro Dragón’s land iguanas once played an important part in a conservation program headed by the Charles Darwin Foundation and the Galapagos National Park. When the reptiles’ numbers declined in the 1970s, some animals were taken to breed in captivity and were released back into undeveloped areas. Today, it is an honor to see the success of this program firsthand at Cerro Dragón. Walk inland on a trail past small saltwater lagoons that periodically feature flamingos, to see the reintroduced animals. In a periodic local phenomenon, during rainier times the salinity in the lagoons drops with the inflow of freshwater. As a consequence crustacean populations decline, which in turn means the shorebirds become scarce.