Nature · Geography · The Gambia

The River Gambia

Published June 3, 2026.

The Gambia is named after its river, and rightly so: the River Gambia defines the country's shape, ecology, economy, and much of its tourism. Understanding the river is the quickest way to understand the country. This guide introduces the waterway — where it comes from, how it changes along its course, and how visitors experience it.

From the highlands to the Atlantic

The River Gambia rises in the Fouta Djallon highlands of Guinea, flows through Senegal, and runs the length of The Gambia from east to west before meeting the Atlantic at Banjul. Over a thousand kilometres long and navigable for much of its lower course, it is one of West Africa's great rivers and the natural spine around which the narrow country is wrapped — as the map makes clear.

A river that changes character

The river is not the same along its length. Near the coast it is wide, tidal, and brackish, lined with mangroves and salt-tolerant wetlands. Moving inland, the water gradually becomes fresher and the banks shift to gallery forest, savannah, and farmland. This gradient of habitats — saltwater to freshwater within one river — is a big part of why the country's wildlife is so varied.

Wildlife of the river

The river and its creeks ("bolongs") support a remarkable range of life: kingfishers, herons, fish-eagles, and other birds; crocodiles and monitor lizards; the elusive West African manatee; and, upriver, hippopotamuses and the chimpanzees of the River Gambia National Park's Baboon Islands. The wildlife guide and national parks guide go further.

The working river

The river is also a livelihood. Fishing communities line its banks and creeks, ferries and boats carry people and goods across and along it, and the port at Banjul connects the river to international trade — explored in the trade and logistics guide. For centuries it was the region's main highway, a history traced in the history guide.

Experiencing the river

Boat trips are the highlight for most visitors, from short mangrove-creek paddles near the coast to multi-day journeys upriver toward Janjanbureh and the national park. Early mornings are best for wildlife and light. Trips range from rustic local pirogues to organised cruises; agree details and safety arrangements in advance.