About thirteen kilometres northwest of the town of Nimule, the White Nile does something it does nowhere else in South Sudan: it gets angry. After entering the country from Uganda through a wide, calm valley, the river hits a rock step, breaks up into three kilometres of rapids and ends up jammed into a gorge less than twelve metres wide. Through it passes the entire flow of the upper Nile, compressed and furious. That is the Fola Falls.
These are not postcard falls, with a curtain of water dropping from a height. They are something rarer and, for many people, more impressive: a huge river forced through a hole. You hear the noise before you see anything. They lie inside Nimule National Park, created in 1954, and the two make up a single visit: you arrive by boat along the Nile among hippos and crocodiles, go ashore and walk to the viewpoint with park rangers.
The Fola Falls are also a crossroads of possible futures. South Sudan has been planning its main hydroelectric plant on these rapids for decades: a 42-megawatt scheme ready to go to tender, and a much larger one, Grand Fula, announced at around 890 megawatts. For a country where most people have no access to electricity, it is a giant promise. For the park and the landscape, it is a question mark. This guide explains what the falls are, what they mean and why, with the country on maximum alert, all of this should be read as information and not as a travel plan.
The Fola Falls are the natural feature that shaped the political and commercial geography of all of southern South Sudan: this is where navigation on the Nile from the north ends. River expeditions sent by Muhammad Ali of Egypt and led by the Ottoman officer Salim Qapudan forced their way through the Sudd swamp between 1839 and 1842 and reached Gondokoro, next to present-day Juba. From then on the river was open to the ivory and slave trade up to that point, but no further: the rapids that begin near Nimule and peak at Fola meant swapping the boat for the caravan. That bottleneck gave rise to the town of Nimule as a transfer point, and the wildlife of the river corridor led, in 1954, to the creation of Nimule National Park, which contains the falls. Since the mid-20th century, the falls have also appeared in every energy plan for the region. The Fula Rapids hydroelectric project went to tender with Norwegian support, and construction was announced for 2014, before the civil war that broke out in December 2013 froze it.
Read the full history ↓Where the Nile enters the country through rapids and mountains: Ma'di land, the Nimule park created in 1954, the Fola falls and the road the South Sudanese economy depends on.
Read the history of The south: the border with Uganda →No exact prices: a scale from $ (budget) to $$$$$ (luxury), with 2-3 options per category.
Origins, formation and what the sources say.
Fola Falls exist because the Nile has to drop down a step. To the south, in Uganda, the river runs along the floor of the western branch of the Great Rift Valley, fed by Lake Victoria and Lake Albert; to the north, in South Sudan, lies an immense, almost flat clay plain that eventually turns into the Sudd swamp. Between these two worlds sits a threshold of ancient rock from the African crystalline basement — Precambrian granites and gneisses — that the river has not yet finished wearing away.
On that threshold the water cannot spread out: it concentrates. The classic description given by the Encyclopædia Britannica is precise. The Nile enters a stretch of rapids about two miles long — roughly three kilometres — with a drop of around twenty feet, some six metres. Then the rock chokes it: the river squeezes into a gorge more than three hundred feet long, over ninety metres, and plunges into a deep cavity less than forty feet wide, about twelve metres. The entire flow of the upper Nile forced through a corridor the width of a house.
That geometry is what makes the place different from a conventional waterfall. There is no curtain of water falling into empty space: there is a mass of water that is compressed, accelerated and turned into pure energy. You hear it long before you see it, and the mist rising from the gorge keeps the immediate surroundings damp and green, with a dense gallery forest that contrasts with the dry savannah around it.
The flow varies a lot over the year. Rain in the upper basin and the contribution of the great equatorial lakes push the volume to its peak towards the end of the wet season, roughly between August and October, and it is much lower in the dry season from December to March. In flood, the gorge disappears beneath one continuous white mass.
For thousands of years, the geography of the upper Nile was a mystery. The ancient Egyptians never managed to follow the river to its source. Around AD 61, according to classical sources, an expedition of Roman soldiers sent by the emperor Nero came to a halt at the Sudd swamp, much further north, unable to get through. European maps stayed blank until the 19th century.
The breakthrough came by water, and from Egypt. Between 1839 and 1842, the Ottoman naval officer Salim Qapudan led three river expeditions, commissioned by Muhammad Ali, to force a way through the Sudd and search for the sources of the Nile. The first left Khartoum in November 1839 and reached Bor. The second set out in November 1840 and reached Gondokoro — next to present-day Juba — in January 1841. They did not find the sources, but they achieved something with enormous consequences: they made the Nile navigable from Khartoum into the deep south, and that unleashed the expansion of the ivory and slave trade by Ottoman-Egyptian officials and by European and Levantine merchants.
Upstream of Gondokoro, however, the river closes off. The rapids that begin around Nimule and peak at Fola set an absolute limit on navigation. There, every load had to come off the boat and carry on south on the backs of porters or animals, and every load coming from the interior had to make the reverse journey. That bottleneck created a town, Nimule, and a route, the one that still links Juba with Uganda today.
The British explorers of the second half of the 19th century knew this barrier well. Samuel Baker and Florence Baker travelled up the Nile to Lake Albert in the 1860s; Charles Gordon governed the province of Equatoria from Gondokoro and Lado in the 1870s. For all of them, the Nimule–Fola stretch was the same obstacle that had stopped the Romans, only shorter and more violent.
The colonial carve-up of the late 19th century turned a natural barrier into a political one. The dividing line between Anglo-Egyptian Sudan and the Uganda Protectorate was drawn very close to these rapids, splitting in two the land of the Madi people, farmers and fishers of the Nile valley who lived on both sides. Nimule became a border and customs town, a role it never lost and that still shapes its whole life today.
In 1954, the Anglo-Egyptian Sudan administration declared Nimule National Park, covering some 410 square kilometres that take in both the Nile corridor and the falls. It was a decision of its time — British East Africa had been creating reserves since the 1930s to curb commercial hunting — and it made Fola the oldest protected natural landmark in what is now South Sudan. The park was classified as Category II by the International Union for Conservation of Nature and, later, as an Important Bird Area.
The protection came just in time. In August 1955, barely a year later, the mutiny of the Torit garrison sparked the first Sudanese civil war; in January 1956 Sudan became independent. The south entered a cycle of conflict that, with a truce between 1972 and 1983, would last half a century. Nimule sat on the main corridor to Uganda: a route for supplies, for flight and for return, with camps for displaced people and a constant flow of refugees heading into northern Uganda.
The falls, meanwhile, were still there, mostly inaccessible and almost without visitors, protected by their own remoteness. When the 2005 Comprehensive Peace Agreement opened a window and the park reopened to the public in 2008, Fola became somewhere you could actually go again. The opening of the paved Juba–Nimule road in 2012 — 192 kilometres built with US funding through USAID for about 225 million dollars — put it less than three hours from the capital. It was the moment South Sudan came closest to having a visitable natural destination.
South Sudan has oil and almost no electricity. Its rate of grid access is among the lowest in the world, and power generation relies heavily on diesel generators. In that context, the Fola rapids have been the country's most obvious energy asset since the mid-20th century: a concentrated drop on the Nile, close to the border and to the only paved road.
The project took concrete shape after independence in 2011. The most advanced version, known as Fula Rapids, involves a 42-megawatt power station plus a transmission line of about 150 kilometres and a substation, backed by Norwegian funders; a tender was issued and construction was announced to start in 2014. The civil war that broke out in December 2013 stopped everything, and sector documents state explicitly that the delay is due to insecurity in the country since that year.
Alongside it there is a far more ambitious version, Grand Fula, announced at around 890 megawatts and with a target of entering operation in the 2030s. It would be, by a long way, the largest infrastructure project in the country's history.
The project has not been shelved. In March 2026, the Minister of Energy and Dams toured the Fulla Falls site with a European Union delegation led by its ambassador in Juba, and the government has once again presented the dam as an engine of national growth. The underlying question — what happens to the falls, to the river corridor and to the country's oldest national park if the project goes ahead — has so far had no detailed public answer. It is a classic tension with no easy answer: a country in desperate need of energy, and a landscape that is both natural heritage and a potential source of that energy.
Fola Falls are, in all likelihood, the most impressive river landscape in South Sudan, and for more than a decade they have been practically out of reach for anyone who does not live or work in the area. The 2013-2018 civil war formally ended with the revitalised peace agreement, but implementation was left incomplete, and in March 2025 the house arrest of First Vice President Riek Machar pushed the process, according to the agreement's own monitors, to its most fragile point.
When it comes to access, the verdict is unanimous. The United States Department of State keeps the country at Level 4, “Do Not Travel”, due to crime, kidnapping and armed conflict, with the ordered departure of its non-emergency government staff. The British Foreign, Commonwealth & Development Office advises against all travel to the whole country and warns that the political situation is highly unpredictable, in guidance updated on 26 May 2026. Spain's Ministry of Foreign Affairs puts it bluntly: «se desaconseja el viaje bajo cualquier circunstancia» (travel is advised against under any circumstances), a recommendation updated on 28 March 2025 that particularly highlights the danger on the roads and how it worsens during the rainy season.
Even so, there is a reason to tell their story. Conservation in South Sudan is not dead. In 2023, the first comprehensive aerial wildlife survey in the country's history, carried out by African Parks together with the government between 28 April and 15 May, recorded a migration of almost six million antelope in the Boma and Bandingilo parks: the largest land mammal migration on the planet, until then unknown outside the region. The discovery changed the conversation about South Sudan's natural heritage and about what this country still holds.
Fola is part of that heritage. It lies inside the country's oldest national park, at the exact point where the Nile enters South Sudan and decides to stop being navigable. It is geology, it is the history of exploration, it is a border, it is a contested energy project and it is, above all, an enormous river forced through a twelve-metre gap. One day it will be possible to see it up close again. For now, it is enough to know it is there.
