Salt was extracted from this site (locally known as Puerto Egas) in the 1920s and 1960s, and the remains of some buildings can still be seen.
The salt-lake crater that is now home to white-cheeked pintails and the occasional flamingo was explored by Darwin in 1835. Nearby is Sugarloaf Hill, or Pan de Azúcar, a tuff cone 395 m (1,295 feet) high.
Beyond the zone of former human activity the area becomes a natural wonderland.
There are tide pools where large marine iguanas graze the sea lettuce, both in and out of the water, with many brightly colored Sally lightfoot crabs on the rocks.
The birds include three or four species of herons, Galapagos hawks, doves, American oystercatchers, and perhaps some handsome whimbrels flying past. This is one of the best places in Galapagos to see migratory shorebirds feeding at low tide.
At the end of the trail fur seals can be seen, alongside young sea lions. Before leaving Puerto Egas, most visitors cool off with a swim or a snorkel off the beach.