Calabar River

The Calabar River in Cross River State, Nigeria flows from the north past the city of Calabar, joining the larger Cross River about 8 kilometres (5.0 mi) to the south. The river at Calabar forms a natural harbor deep enough for vessels with a draft of 6 metres (20 ft).

The Calabar River was once a major source of slaves brought down from the interior to be shipped west in the Atlantic slave trade. Slaving was suppressed by 1860, but the port of Calabar remained important for export of palm oil and other products, until it was eclipsed by Port Harcourt in the 1920s. With improved roads into the interior, Calabar has regained importance as a port and is growing rapidly. The tropical rain forest in the Calabar River basin is rapidly being destroyed, and pollution is decreasing fish and shrimp catches in the estuary. Those that are caught have unsafe levels of contaminants.