Kainji Lake: hippos and savanna nights on the Oli river
Hippopotamus, kob, roan, hartebeest, buffalo, olive baboon, spotted hyena; waterbirds on Kainji Lake. Kainji Lake National Park (Borgu sector), Niger & Kwara States, Nigeria.
Best time: 1 Feb – 30 Apr (February to April). Where: Oli river camp – Borgu sector, Wawa / New Bussa – park headquarters and gate (Nigeria). Time of day: Hippos grunt from the last hour of light through the first hours of dark and again before sunrise.
- Guide, ranger or boat needed
- Entry fee
- Binoculars helpful
- Sound 4/5
Open it in the interactive calendarSunrise and sunset listening times for the day you pick, and the map.
When is the best time?
Peak: 1 Feb – 30 Apr. February to April: the park is open December–June and the Oli river pools concentrate the animals late in the dry season
Active from 1 Dec to 15 Jun (December to June) in a typical year.
Time of day
Hippos grunt from the last hour of light through the first hours of dark and again before sunrise; drives from sunrise to 10:00 and from 16:00
- Hippos return: 1 h before sunrise → 30 min after sunrise
- Morning drive: sunrise → 10:00
- Evening hippos: 1 h before sunset → 2 h after last light
What will you hear?
Hippo choruses on the Oli river pools at dusk, hyena and nightjars around the camp, baboon barks, and the wide Guinea-savanna dawn of francolins, hornbills and doves.
Binoculars?
Binoculars helpful. Hippos in the Oli pools 50–100 m from camp at dusk; binoculars help in the last light, ears do the night.
Where to go
- Oli river camp – Borgu sector — Chalets and camping on the Oli; the hippo pools are within earshot. Map
- Wawa / New Bussa – park headquarters and gate — Entry and vehicle arrangements; New Bussa has hotels and the Kainji dam. Map
How to go on your own, and what it costs
A park guide/ranger accompanies vehicles (park rule). Cheapest legal way: bus to New Bussa, pay gate entry, hire a park guide at the headquarters and bring or hire a vehicle; camp at Oli.
Cost: Gate entry about ₦1,000 per person (₦1,000–1,500 on holidays), guide and vehicle extra; check current prices.
Free or no-guide alternative: Kainji Lake's public shore at New Bussa and the fishing villages give waterbirds and the lake dawn for free; the Oli hippos are inside the park.
Who runs access
- Kainji Lake National Park – Nigeria National Park Service (park authority) — Park-run guides, vehicles and chalets
Field-recording notes
A national park with a park guide required in the vehicle (park rule); your own 4x4 is allowed, or hire the park's. Open December to June only. The generator at the Oli camp and the dam town are the noise; the river pools after the generator goes off are excellent. Bush fires and cattle incursions are common in the dry season. Niger State has had security incidents; check current travel advice and phone the park headquarters at New Bussa first.
Sources
Similar spectacles
Pendjari: lions, elephants and hippos at the dry-season poolsLions roaring across the Pendjari plain in the small hours — one of the few places in West Africa where this is still likely — hippos bellowing at Mare Bali, elephants at the pools, hyena whoops and a savanna dawn of francolins, ground hornbills and doves.
Niokolo-Koba — hippos, lions and the Gambia river in the dry seasonHippo pods bellowing on the Gambia river below the Simenti terrace, lions roaring across the dry savanna, hyenas, and at dawn the booming of ground hornbills and the calls of spur-winged geese and Egyptian plovers on the sandbars.
Hippos and the chimpanzee islands of the River Gambia National ParkHippo pods grunting and blowing on the river bends below Janjanbureh, chimpanzee pant-hoots carrying across the water from the Baboon Islands, baboon troops on the banks and fish eagles at every bend.
Outamba-Kilimi — hippos, chimps and the northern savanna at nightHippo pods on the Little Scarcies river, chimps and colobus in the gallery forests at dawn, ground hornbills booming, and savanna nights with nightjars and hyenas — Sierra Leone's oldest park and its emptiest.
Hippos on the Mono riverHippo laughing-grunts and blows from the river pools at dusk, carrying up the gallery forest, with nightjars and the fishing villages beyond.
Saltwater hippos of OrangoHippo grunts and blows from a lagoon inside island forest, then the same animals walking past the village beach at night and surfacing in the sea in the morning — the world's only regularly marine hippos.
More: all spectacles in Nigeria · hippos · wildlife at night · Nigeria in February · Nigeria in March · April