Brecon Loop Day 3: Llwyn Onn to YHA Brecon

Follow along as I take a stunning uphill trek from the Llwyn Onn Reservoir up into the high country of the Bannau Brycheiniog (Brecon Beacons).

This route follows a beautiful rising valley, offering a perfect mix of tranquil waterside paths and the steady climb toward the YHA Brecon Beacons via summit of Fan Fawr

We start at the forest edges of Llwyn Onn, passing the massive expanse of the reservoir before heading deep into the glacial valley where the landscape truly opens up.

If you’re looking for a walk that captures the transition from woodland and water to the rugged mountains of Wales, this is it!

Key Highlights of this Walk:

Llwyn Onn Reservoir: Starting with the peaceful views across the water.
The Rising Valley: Watching the landscape shift as we gain elevation.
Cwm Taf: Exploring the hidden gems of this northern-climbing route.
Arriving at YHA Brecon Beacons: One of the most iconic, remote hostels in the UK.

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