The waterfall is formed by the Nant Llech stream dropping over a ledge of hard sandstone into a deep, steep-sided gorge.
The name 'Henrhyd' is derived from Welsh, roughly translating to 'old ford'.
The deep ravine carved by the water exposes layers of Carboniferous sandstone and shale, significant to local geological history.
Visitors can walk behind the curtain of falling water, though this area can be slippery and hazardous.
The site is part of a larger National Trust-managed woodland area that acts as a vital corridor for local wildlife, including bats and otters.
Henrhyd Falls is the tallest waterfall in the Bannau Brycheiniog (Brecon Beacons) National Park, plunging 90 feet into a wooded gorge. The site is managed by the National Trust and serves as the primary feature of the Nant Llech valley walk. The waterfall flows over a sheer sandstone cliff face, creating a distinct spray zone. Visitors reach the falls via a steep, often muddy descent from the designated parking area. The surrounding temperate rainforest ecosystem supports diverse mosses and ferns within the ravine. It gained modern cultural significance as a filming location for the Batcave in the 2012 film The Dark Knight Rises.
From the bridge crossing the stream near the base of the falls to capture the full 90-foot drop.
Wear sturdy, waterproof hiking boots with excellent grip, as the path is notoriously muddy and steep.
Bring a waterproof jacket or poncho to protect yourself from the heavy spray if you approach the base of the falls.
Check local weather forecasts beforehand, as high rainfall can make the trail descent unsafe.
Attempting the descent in standard street shoes or flip-flops, as the path is slippery and unstable.
Stay on marked paths to prevent erosion and avoid disturbing the delicate fern and moss habitats on the gorge walls.
