The water boils directly from the forest floor. In Semuliki National Park, in the Bundibugyo district of western Uganda, the geothermal springs of Sempaya erupt water at temperatures exceeding 100°C, hot enough to cook an egg in a few minutes. Visitors really do it: they buy eggs from local vendors at the entrance to the site and dip them into the bubbling natural pools, watching the steam rise among the treetops. It is one of the few places in the world where geothermal activity and rainforest meet so spectacularly.
The park protects one of the oldest lowland rainforests in East Africa, a fragment of the great Congo basin that extends westward. Officially established in 1993, it covers about 220 square kilometers at the foot of the Rwenzori Mountains, along the border with the Democratic Republic of the Congo. This geographical location makes it extraordinarily rich in animal and plant species that are not found elsewhere in Uganda or East Africa.
A biodiversity like no other
The Semuliki hosts over 400 species of birds, a figure that places it among the most important ornithological sites on the African continent. The uniqueness is not just in the number: many of these species are endemic to the Congo basin and reach their eastern distribution limit here. Birds such as the African pitta and various representatives of the hornbill family can be spotted in the morning hours along the trails that wind through the dense forest. For serious birdwatchers, this park represents a once-in-a-lifetime opportunity to add species to their list that cannot be seen in any other country in East Africa.
The mammal fauna includes elephants, buffalo, chimpanzees, and several species of primates, including the crested guenon and the red colobus. The forest is dense, and spotting requires patience, but local rangers are well acquainted with the movements of the animals and guide visitors along paths where the chances of close encounters are higher. The vegetation itself is an attraction: enormous trees with buttress roots, vines as thick as cables, a layer of humid and shady undergrowth that creates an almost prehistoric atmosphere.
The Sempaya Springs
The two main geothermal springs in the park are called Bintente (female, the largest) and Nyasimbi (male, smaller). According to the local tradition of the Bamba and Bakonzo, the populations that have inhabited the area for generations, these springs have a deep spiritual significance. The Bintente spring produces an intermittent geyser that shoots boiling water into the air, visible from a viewing platform built at a safe distance. The ground around is colored by mineral deposits in shades of orange, yellow, and white, and the smell of sulfur can be detected from several dozen meters away.
The path leading to the springs crosses the forest for about two kilometers and takes about an hour to walk round trip. The trail is well marked and accessible even to those without experience in trekking in tropical environments. During the journey, it is common to spot monkeys among the treetops and to hear the songs of bird species that are difficult to identify without a specialized guide.
How to organize the visit
The park can be reached from Fort Portal, the nearest city of significant size, located about 50-60 kilometers to the east. The transfer by off-road vehicle takes about two hours due to the state of the roads, especially during the rainy season. Fort Portal is connected to Kampala by regular buses and domestic flights. Entrance to the park requires payment of a daily fee managed by the Uganda Wildlife Authority, the state agency that administers the protected areas of the country: it is advisable to check the updated rates directly on their official website before departure.
The best time to visit Semuliki is during the dry season, which in this area mainly falls between June and August and between December and February. During the rainy seasons, the trails become muddy and slippery, and some access roads may become impassable. For birdwatching, the early hours of the morning, between six and nine, are the most productive. It is highly recommended to book a local bird guide in advance: their knowledge of the area makes the difference between an ordinary experience and truly memorable sightings.
What to bring and realistic expectations
The rainforest is humid by definition: temperatures around 25-30°C combined with very high humidity make clothing an important factor. Lightweight and breathable layers, waterproof hiking shoes, and a good insect repellent are essential. The forest is dense and light is scarce: a quality binocular is essential for birdwatching, and a camera with a bright lens helps capture animals in the underbrush.
The Semuliki is not a park suitable for those seeking guaranteed sightings of big cats or open savanna landscapes. It is instead the right place for those who want to immerse themselves in an ancient forest ecosystem, listen to a forest that produces incessant and unexpected sounds, and physically understand what it means to be in a habitat that does not exist in any other corner of East Africa.
