Land area: 27 sq km Highest peak: 100 m

In the 2nd world war the US Americans used this island as an air force base. Today it is the most important airport of Galápagos and a small navy base for Ecuador. Baltra has suffered most from human settling and does not have any visitor sites. Many cruises start from the its harbour and already there pelicans and noddies will welcome you.
To the north lies Mosquera, a small sandy bank with a large colony of sea lions. You can go swimming and snorkeling on the beach.