The southeastern region of Ivory Coast is marked by coastal inland lagoons that starts at the Ghanaian border and stretch 300 km (186 mi) along the eastern half of the coast. The southern region, especially the southwest, is covered with dense tropical moist forest. The Eastern Guinean forests extend from the Sassandra River across the south-central and southeast portion of Ivory Coast and east into Ghana, while the Western Guinean lowland forests extend west from the Sassandra River into Liberia and southeastern Guinea.