Marau Sound is an airport located at the eastern end of Guadalcanal Island, in Guadalcanal Province. It has a small airstrip that provides domestic airport flights between Solomon Islands Capital, Honiara and Marau Sound. The airport has scheduled flights provided by Solomon Airlines, using DHC-6 Twin Otter aircraft going twice a week on Mondays and Fridays, resuming from October 2022. The flight from the capital takes about one and a half hours.
In 1896 a large and profitable trading station was established on Tavanipupu (Crawford) Island in Marau Sound. It is now the site of the Tavanipupu Spa & Wellness Retreat, which was visited by the Duke and Duchess of Cambridge in 2012.