It is protected under the Lubombo Transfrontier Conservation Area, and contains the Reserva da Inhaca.

[4] The highest point of the island is Mount Inhaca at 104 metres (341 ft) on the north-eastern shoreline.

In 2014 it was reported that hydro-mechanical specialists have been consulted to see a further expansion of the complex, with the aim of increasing the height of the dam from 110 metres (360 ft) to 117 metres (384 ft), and installing crest spillway gates and a fuse plug.

The dam is under the responsibility of the water directorate, Direcção Nacional de Águas (DNA).

With an area of 22,693 square kilometres (8,762 sq mi), the population density was about 54.34 people per km2.25°30′S 32°20′E / 25.500°S 32.333°E / -25.500; 32.333