Gallery 0 Results Reset search Close Ramsar Convention Secretary General, Martha Rojas-Urrego, visting Sian Ka'an Ramsar Site CONANP Mexico Sian Ka'an lies on a large karstic plain along a 120km-long barrier reef. Two large, shallow bays surrounded by mangroves, as well as numerous sinkholes or cenotes, are main landmarks in a landscape of tropical deciduous forests. CONANP Mexico A largely undeveloped wetland complex composed of sloughs, bogs, and coastal lagoons that harbor the largest natural wild rice bed on the Great Lakes Manglares de Nichupté, Ramsar Site no. 1777. These dense strips of mangrove protect inland areas against hurricanes and storms. Ramsar Convention