 Before the river reaches the village of Freetown Sibun, river figs and spiny bamboo ("Guadua longifolia") are common along its banks; along the stretch of river between the coast and the village, mangroves are predominant.It empties into the Caribbean Sea, south of Belize City.The Sibun River Watershed features several vegetation types, including tropical evergreen seasonal mixed needle forest, broadleaf forest, mangroves, and agriculture.