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Western Uganda has dozens of crater lakes, most of them in the Ndali–Kasenda area south of Fort Portal, near Kibale Forest, with more in the Katwe and Bunyaruguru crater fields of Queen Elizabeth National Park. They formed when rising magma met groundwater and exploded, leaving round craters that later filled with water. Steep green walls, forest, tea and banana farms and views of the Rwenzori Mountains make them some of the most beautiful landscapes in Uganda. They are easy to add to a safari that includes Kibale’s chimpanzees.
How the lakes formed
The western branch of the Rift Valley runs along Uganda’s border with Congo, and volcanic activity there, in geological terms quite recently, produced explosion craters across the region. Each crater is roughly circular, often with steep sides, and many now hold lakes of different colours and depths. In Queen Elizabeth National Park, some crater lakes are salty, such as Lake Katwe, where salt has been mined by hand for centuries, and Lake Munyanyange, which sometimes attracts flamingos.
The Fort Portal crater lakes
The Ndali–Kasenda crater field lies between Fort Portal and Kibale Forest National Park. Lakes such as Nkuruba, Nyinabulitwa and Nyabikere are known for forested rims, birds and primates, including black-and-white colobus and red-tailed monkeys; Lake Kyaninga near Fort Portal is admired for its deep blue water and views. Walking or cycling between the lakes on village tracks is one of the best ways to see the area, and several lodges sit on crater rims. See our guide to chimpanzee tracking in Kibale.
Crater lakes in Queen Elizabeth
The Explosion Crater drive in the north of Queen Elizabeth National Park, between Kasenyi and the Kabatoro gate area, passes a series of craters with wide views over the Rift Valley floor, and the Bunyaruguru area near Kyambura has more crater lakes. Lake Katwe’s salt pans are a fascinating cultural stop. See our guide to Queen Elizabeth National Park.
Visiting tips
Spend at least one night near Fort Portal or Kibale to enjoy the lakes, ideally as part of a route between Kibale and Queen Elizabeth. Ask locally before swimming, as bilharzia is present in some Ugandan waters, and be careful on steep crater paths after rain. Lake Bunyonyi and Lake Mutanda in the south-west are also beautiful volcanic-region lakes, though formed differently; see our Lake Bunyonyi guide and our 12-day itinerary, which includes a crater lakes day.
Frequently asked questions
Mainly around Fort Portal near Kibale, and in the Katwe and Bunyaruguru areas of Queen Elizabeth National Park.
By volcanic explosions when rising magma met groundwater, leaving craters that filled with water.
Some people do, but ask locally first, as bilharzia occurs in some waters.
Stay near Fort Portal or Kibale between chimp tracking and Queen Elizabeth.
Crater Lake Formation and Ecology
Uganda’s crater lakes — more than 80 of them concentrated in the Fort Portal region and the Albertine Rift highlands — were formed by phreatic volcanic explosions that created circular depressions in the landscape, which subsequently filled with groundwater and rainfall to produce the deep, steep-sided lakes that characterise the western Uganda highland landscape. The crater lakes’ depth-to-surface-area ratio is typically much higher than that of the rift valley lakes, creating stratified water columns that produce the distinctive colour variation between crater lakes — some appear deep green, others bright blue, others red or brown — depending on the algal community and mineral content of each lake’s specific geology.
The Lakes area near Fort Portal — where approximately 30 crater lakes are accessible within a one-hour drive of the town — is visited as a scenic complement to Kibale Forest chimpanzee tracking, with half-day crater lake walks and canoe excursions providing the activity programme for an afternoon when the chimpanzee track has finished and the following day’s departure is planned. The most frequently visited crater lakes near Fort Portal — Nkuruba, Nyinambuga, and Nyamusingiri — each have their own community tourism programmes, with local guides who explain the crater formation, the traditional fishing practices, and the birdlife that uses the steep-sided lake margins.
The crater lakes’ cultural significance in western Uganda extends beyond their geological interest to their role in the traditional cosmology and historical narratives of the Toro Kingdom and the communities who have lived adjacent to them for centuries. Local oral traditions associate several of the most dramatic crater lakes with specific historical events or spiritual significance — the lake whose colour was said to change before a battle, the crater whose ownership was contested between neighbouring clans for generations, the lake whose fishing rights were controlled by the royal family as a marker of sovereignty. Guides who carry this cultural knowledge alongside the geological explanation provide a multi-layered lake visit that the geological account alone does not.
