The World’s Largest Caldera. An ancient volcano with spectacular calderas, waterfalls, and the world’s largest intact caldera
Overview
Mount Elgon National Park is a 1,279-square-kilometer park located on the border between Uganda and Kenya. The park protects Mount Elgon, an extinct shield volcano with the largest volcanic base in the world (50km by 80km).
Established in 1992, Mount Elgon is one of Uganda’s oldest physical features, first erupting around 24 million years ago. The mountain’s vast size, supporting a variety of altitudinal vegetation zones, creates unique ecosystems and microclimates.
The park is famous for its spectacular calderas, volcanic plugs, hot springs, and waterfalls. Mount Elgon’s largest caldera measures 8km by 5km and is one of the world’s largest intact calderas.
The Gentle Giant
Mount Elgon offers some of East Africa’s best hiking experiences without the extreme altitude challenges of other major peaks. The mountain’s gentle slopes make it accessible to hikers of various fitness levels.
The park features four main peaks: Wagagai (4,321m), Sudek (4,302m), Koitobos (4,222m), and Mubiyi (4,211m). These peaks form a massive caldera complex with stunning geological features.
Unique Geological Features
Mount Elgon is renowned for its enormous calderas, the largest of which could contain the entire city of Kampala. The mountain’s volcanic features include ancient lava flows, volcanic plugs, and numerous hot springs.
The park is home to 300 bird species and 24 mammal species, including elephants, buffaloes, and various primate species. While wildlife viewing is more challenging than in savanna parks, the mountain’s forests and moorlands host unique species adapted to high altitudes.
Park Highlights
- World’s largest volcanic base (4,000 sq km)
- One of world’s largest intact calderas
- Spectacular waterfalls including Sipi Falls
- Ancient cave systems with cultural significance
Best Time to Visit
- December to March (Dry season)
- Best hiking conditions with clear views
- June to September (Dry season)
- April to May & October to November (Wet seasons)
Main Hiking Routes
Mount Elgon offers several hiking routes of varying difficulty and duration:
Sasa Trail
Shortest but steepest route to the summit (4-5 days)
Sipi Trail
Most scenic route starting at Sipi Falls (5-6 days)
Piswa Trail
Gentle slope through beautiful forest (6-7 days)
Caldera Exploration
Explore the massive caldera and hot springs
Quick Facts
Distance from Entebbe International Airport
235 kilometres (146 miles) to Mbale
Size
1,279 sq km (494 sq mi)
Elevation
2,000 to 4,321 meters (6,562 to 14,177 ft)
Year Established
1992
Volcanic Base
Largest volcanic base in world (50km x 80km)
Biodiversity
300 bird species
24 mammal species
400+ plant species
5 distinct vegetation zones
Other Activities
Sipi Falls Visit
Visit three stunning waterfalls near the park entrance
Day Hikes
Shorter hikes to viewpoints and forest areas
Rock Climbing
Climb volcanic plugs and rock faces
Cultural Experiences
Visit local communities and learn about Sabiny culture
What to Expect on Your Visit
1
Mountain Hiking
Experience gentle but rewarding hikes on Africa’s largest volcanic base. Pass through diverse vegetation zones from montane forest to alpine moorland and reach the spectacular caldera.
2
Waterfall Exploration
Visit the stunning Sipi Falls, a series of three waterfalls with drops of 85m, 75m, and 100m. Enjoy breathtaking views and photography opportunities in this scenic area.
3
Geological Wonders
Explore one of the world’s largest intact calderas, volcanic plugs, hot springs, and ancient lava flows. Discover the fascinating geology of this ancient shield volcano.

