The Four Waterfalls Walk is a famous trail located near Ystradfellte, Powys, in South Wales. The trail boasts stunning scenery and access to 'The Four Waterfalls' in the Brecon Beacons National Park. The four falls are: Sgwd Clun-Gwyn, Sgwd Isaf Clun-Gwyn, Sgwd y Pannwr, and Sgwd yr Eira.

The most famous "Four Waterfalls Walk" is located in the Bannau Brycheiniog (Brecon Beacons) National Park in South Wales, specifically in an area known as "Waterfall Country" near the village of Ystradfellte. The official name of the trail is the Four Waterfalls Trail (or Llwybr y Pedwar Rhaeadr in Welsh). The four stunning falls you encounter along this 5.5-mile (9 km) circular route are Sgwd Clun-Gwyn, Sgwd Isaf Clun-Gwyn, Sgwd y Pannwr, and Sgwd yr Eira. The highlight of the hike is Sgwd yr Eira (the "Fall of Snow"), where the trail actually allows you to walk directly behind the curtain of thundering water. In 2026, this trail remains one of the most popular in the UK, requiring sturdy footwear as the paths can be very muddy and slippery. While there are other "waterfall walks" globally—such as the "Four Falls" in the Columbia River Gorge or similar trails in the Azores—the Brecon Beacons route is the definitive answer for those searching for this specific name in a European hiking context. It offers a spectacular display of the geological power of the Mellte and Hepste rivers.