Gaua rises about 3000m from the seafloor to an altitude of 797m. Gaua has had at least 13 eruptionsfrom Mt Gharat since 1963 - the most recent in 1982 lasting less than a day. Mt Gharat is denuded by recent volcanic activity, but the caldera are vegetated with rainforest.
Important for its Palm Lorikeet and Royal Parrotfinche populations. Also holds small numbers of Vanuatu Imperial Pigeon and Vanuatu Megapode.
Non-bird biodiversity: Fiji Blossom Bat Notopteris macdonaldi, Vanuatu Flying Fox Pteropus anetianus, Coconut Crab Birgus latro.
BirdLife International (2020) Important Bird Areas factsheet: Gaua. Downloaded from http://www.birdlife.org on 26/09/2020.