Bazaruto (Portuguese: Ilha do Bazaruto, from Ushurutswa, island of the mist) is a sandy island located approximately 80 kilometres (50 mi) southeast of the mouth of the Save River, Mozambique (21°38′S 35°30′E). It is the largest island in the Bazaruto Archipelago and in the Bazaruto National Park.
The warm, southward-flowing Mozambique Current seems to contribute to the increasing buildup of the sandy coastline. Because the water along this coastal area is very clear, much of the sub-surface channel pattern around the island is discernible. Several narrow lines of plankton bloom parallel the shoreline on the satellite photo below. Bazurato Archipelago holds the largest population of Dugong in Mozambique of more or less than 120 animals.
The coastal plains show numerous lakes and a swampy environment that appears to be karst topography. Underlying the area is limestone rock that has eroded into a pockmarked landscape, creating water-filled sinkholes. Rainfall in this humid tropical climate amounts to around 850 mm (33 inches) annually, largely concentrated in the months December to March.
The closest mainland town to the island of Bazaruto is Inhassoro, although administratively it belongs to the Vilankulo District and Inhambane Province.
Bazaruto Island is the location of Prize Island, a British television game show produced by Endemol for ITV. The first in the series aired on 27 October 2013.