Spend a day from Cardiff exploring South Wales’ highlights: Cyfarthfa Castle, Henrhyd Falls, a 3,018-year-old yew in Bannau Brycheiniog, Brecon town and Caerphilly Castle. Expect short walks, steep muddy paths, and wide upland views.
More ways to explore the area's outdoor wonders
A damp morning in Cardiff gives way to open sky as the white van slides out onto the A470. Within an hour the city’s edge falls away and the Brecon Beacons lift like a low wall ahead—green shoulders, stone ridges and a river that seems to dare you to follow it uphill. The first stop, Cyfarthfa Castle in Merthyr Tydfil, places Victorian iron wealth against landscaped lawns; statues and battlements frame a story of the Industrial Revolution.
Difficulty
moderate
Duration
8 hours
Fitness Level
Suitable for people in average physical condition who can handle several 20–30 minute walks on uneven ground.
Wildlife
History
Merthyr Tydfil’s Cyfarthfa Castle reflects Victorian-era iron wealth; Caerphilly Castle is a large 13th-century fortress that shaped medieval power in the region.
Conservation
Brecon Beacons faces visitor pressure and sensitive peatland; stick to paths, pack out waste, and respect seasonal grazing to limit erosion.
Reserve your spot on the Cardiff: Waterfalls, Mountains & Castles Day Tour today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Expect muddy, steep sections
The walk to Henrhyd Falls is short but can be steep and muddy—waterproof boots with good tread are recommended.
Layer for sudden weather
Brecon Beacons weather changes quickly; bring a breathable waterproof shell and an insulating mid-layer.
Carry small change and snacks
Stops in Brecon and Caerphilly have cafes and shops but bringing a compact picnic keeps you flexible on timing.
Space for photography
Arrive ready to step aside on narrow paths—groups and local walkers may pass during prime photo stops.
Waterproof hiking boots
Keeps footing secure on steep, muddy approaches to Henrhyd Falls.
spring
Breathable waterproof jacket
Protects against sudden rain and wind on exposed upland sections.
all
Daypack with water bladder or bottles
Carry 1–2 liters of water, snacks, and a lightweight layer for the full day out.
summer
Camera or phone with protective case
Capture waterfalls, castles and panoramic upland views—keep electronics dry.
all