Tuléar Reef and Southwestern Rivers, Madagascar23.3S 43.6E
Several rivers spill into the Mozambique Channel from the shores of Madagascar’s Toliara Province, in the southwestern part of the country.
The river closest to the bottom is the Onilahy. It flows down from the hills near Betroka to the Mozambique Channel. Along its path it flows through areas rich in biodiversity, including rainforests, red rock canyons and rice paddies.
Above the Onilahy is the Fiherenana River, which empties into the channel through the Delta du Fiherenana. Further up the coast is the Manombo River.
The coastal area near the mouths of these three rivers is part of the Tuléar Reef, stretching from the south of the Toliara Province up to Morombe. Only part of this reef, which is one of the longest reef barriers in the world, is visible as turquoise patches just offshore.