West Africa is the western region of Africa. In the north the region is bounded by the Sahel, and in the south and west by the Atlantic Ocean. The most densely populated area of Africa, it is many ways both the continent's most difficult place for travel and potentially its most rewarding.
Senegal is an officially Francophone country in Western Africa. With the Atlantic Ocean to the west, Senegal has Guinea-Bissau to the south, Guinea to the southeast, Mali to the east, and Mauritania to the north.
Burkina Faso, formerly Upper Volta, is a landlocked country in West Africa. It is surrounded by six countries: Mali to the north, Niger to the east, Benin to the south east, Togo and Ghana to the south, and Côte d'Ivoire to the south west.
Côte d'Ivoire is a country in West Africa. It has a southerly facing North Atlantic Ocean coast, and is surrounded by Ghana to the east, Liberia to the west, Guinea to the northwest, Mali to the north, and Burkina Faso to the northeast.
Togo is a narrow country in West Africa, sandwiched between Ghana on the west and Benin on the east, with a small border with Burkina Faso to the north, and a 56km coastline on the Atlantic Ocean to the south.