What should a first-time traveler see in South Sudan beyond the obvious highlights?

The Sudd is designated under its own name as Ramsar Site number 1622, listed on 5 June 2006 at 5,700,000 ha, centred near 07°34'N 30°39'E in the lower reaches of the Bahr el Jebel, a section of the White Nile. The Ramsar information sheet describes one of the largest tropical wetlands in the world: open water, submerged and floating vegetation, seasonally flooded woodland, grasslands and floodplain scrub. It is named as an important wintering ground for the great white pelican, the black crowned crane, the white stork and the black tern, and supports endemic fish, bird, mammal and plant species. A single Ramsar designation covering 5.7 million hectares is an unusual thing, and it is the country's most significant internationally recognised natural asset.

East of the Nile lies the other. African Parks and South Sudan's Ministry of Wildlife Conservation and Tourism announced results in Juba on 25 June 2024 from a systematic reconnaissance survey of the Boma Badingilo Jonglei Landscape covering a contiguous block of 122,774 km². The estimates were 5,089,421 white-eared kob, 346,273 Mongalla gazelle, 298,776 tiang and 161,903 bohor reedbuck — a combined 5,896,373 animals across the 4 species. Boma and Badingilo National Parks together cover nearly 3,000,000 ha in the south of the country, inside a wider ecosystem of about 200,000 km² taking in Central Equatoria, Eastern Equatoria, Jonglei State and the Greater Pibor Administrative Area, and continuing across the border into Ethiopia's Gambella National Park.

The survey method is worth knowing because it explains the confidence intervals. 2 aircraft captured over 330,000 images; 59,718 photographs were analysed across 64 transects; data from 251 tracking collars was integrated; and the results were peer-reviewed. The government had signed a long-term agreement with African Parks in 2022.

These are flat, water-driven landscapes rather than scenic ones. The Sudd's 5.7 million hectares are papyrus, floating vegetation and seasonally flooded woodland threaded by channels of the White Nile, with no relief to look down from. The Boma-Badingilo grasslands next door are the dry counterpart, and the thing that fills them is seasonal: 5 million white-eared kob moving through, or not there at all.

The headline figure conceals a decline. The same survey found that, measured against studies from the 1980s, most sedentary species in the landscape — the report names elephant, warthog, cheetah, hippo and buffalo — have fallen substantially, even as the migratory antelope numbers came in at nearly 6 million. African Parks' chief executive described commercial poaching occurring at a scale never previously witnessed there. So the landscape is simultaneously host to the largest overland mammal migration yet documented and to a collapsing resident large-mammal community. Any visit is to a system under acute pressure, not a stable one.

• East of the Nile — Boma and Badingilo, nearly 3,000,000 ha between them, hold the migration.
• North of Juba — The Sudd, designated in 2006, is a boat-and-air landscape rather than a road one.
• Across the border — Gambella National Park in Ethiopia belongs to the same ecosystem, which is why the migration is transboundary.

The FCDO advises against all travel to South Sudan because of the risk of armed violence and criminality, provides severely limited consular assistance with no in-person service, and warns that Juba airport may close or be inaccessible and that routes into and out of the country may be blocked. Entry requires a visa for travel or transit, obtained via the national e-visa portal or the embassy, with extensions handled in person at the Ministry of the Interior on Airport Road in Juba, and a stay reaching 5 days triggers a compulsory police-station registration. Beyond the paperwork, FAO's September 2026 brief identified famine risk under plausible worst-case conditions in Luakpiny/Nasir and Ulang counties in Upper Nile and Nyirol and Akobo counties in Jonglei — the same state that holds much of the migration landscape. Unmanaged exploitation was identified in the survey as a threat to the migration patterns themselves.

For the southern April-to-November rainy season and the arrival paperwork in sequence, read the South Sudan when-to-visit answer. The South Sudan food question covers the cereals and the fishery that the Sudd supports.