Afan Forest MTB Guide: The Wall, W2 and South Wales Singletrack

South Wales hides one of Britain's deepest all-weather singletrack networks. Afan Forest Park stacks more than 130km of waymarked trail across three hubs, anchored by The Wall and the brutal black-graded W2 epic.

By the IMPT Travel desk · Published 2026-05-30

The first six kilometres of Y Wal climb relentlessly out of the Afan valley before the trail tips into a sequence of rock-stepped, exposed singletrack that the British MTB press has spent two decades arguing is the finest red-grade descent in the United Kingdom. That climb sets the tone for a destination that rewards fitness as much as nerve. Afan Forest Park, tucked into the steep-sided valleys above Port Talbot, is not a lift-served bike park in the Alpine sense. It is a 120-square-kilometre forest threaded with more than 130km of purpose-built, all-weather singletrack, ridden under pedal power from three hub centres.

The signature trails

Afan's reputation rests on four red-graded loops and one black. Penhydd (22km) was the original, voted trail-of-the-year by What Mountain Bike back in 2004 and still the gentlest introduction to the area's climbing demands. Y Wal / The Wall (24km) is the headline act: a mainly singletrack loop with sustained, technically exposed descents and the rocky zig-zags that feature in nearly every Afan edit on the internet. White's Level (around 15km total, with a 6km singletrack climb-and-descent at its core) opened in stages from 2007 and is the most flowing of the reds, all bermed swoops and pump-track rhythm.

For riders who want a full day in the saddle, the W2 stitches Y Wal and White's Level together into a 44km black-graded epic with roughly 975m of climbing and a high, exposed linking ridge above the treeline. It is one of the longest waymarked black trails in Britain and demands genuine endurance. The longer Skyline loop (46km, with shortcut options) circumnavigates the upper forest and is a favourite for riders on long-travel hardtails or short-travel full-suspension bikes.

How the park is structured

There is no chairlift and no funicular at Afan. Instead, the network is anchored by three hubs connected by trail. The Afan Forest Park Visitor Centre near Cynonville is the trailhead for Penhydd and The Wall. The Glyncorrwg Mountain Bike Centre, a family-run operation with a licensed cafe-bar, bike shop and on-site campsite, is the launch point for White's Level, Blade, Skyline and the W2. The third hub, Bryn Bettws Lodge, hosts the gravity-focused Afan Bike Park: a single climb up to a saddle, then a choice of five blue-to-black graded descents built with berms, jumps and rocky chutes. Private uplift can be arranged through the Afan Valley Bike Shed at Afan Argoed, typically for group bookings, but most visitors pedal their laps.

Getting there

Afan is one of the most train-accessible major MTB destinations in Europe, which matters for visitors thinking about carbon footprint. Port Talbot Parkway sits on the South Wales main line, with Great Western Railway services from London Paddington (around 2hr 45min via Cardiff) and Transport for Wales services from Manchester, Cardiff, Newport and Bristol. The visitor centre is roughly 11km from Junction 40 of the M4. From Port Talbot Parkway, Sustrans National Cycle Route 887 follows former mining railway lines from Aberavon seafront up the valley through Cwmavon and Pontrhydyfen into the forest, a largely traffic-free pedal that lets riders arrive entirely by rail and bike.

Season and conditions

The trails are marketed as all-weather and the local granite-based aggregate drains exceptionally well, which means Afan rides better in wet conditions than almost any other UK trail centre. That said, the upper sections of W2 and Skyline are exposed and can be brutal in low cloud or winter wind. The most reliable window runs May through October, with June and September typically offering the best balance of dry tread, long daylight and quieter trails. July and August school holidays bring more traffic at Glyncorrwg. Winter riding is entirely viable for prepared riders, but Natural Resources Wales posts trail status updates at the trailheads after storm damage, and these should be checked before committing to a full W2 day.

Where to base up

Most riders pick their base by which hub they want to roll out of in the morning. Glyncorrwg village puts the W2, White's Level and Skyline on the doorstep and is the social heart of an Afan weekend, with the cafe-bar at the centre acting as the de facto pub. Afan Lodge, nearer the visitor centre, suits riders prioritising The Wall and Penhydd and is a short drive from Bryn Bettws. Port Talbot itself offers more conventional hotel inventory and direct rail links, at the cost of a 20-minute transfer each morning. Cottages and B&Bs in Pontrhydyfen and Cymmer sit on Route 887 and let riders pedal to the trailhead.

Practical notes

• Bike hire and basic repairs are available at the Glyncorrwg centre and at Afan Valley Bike Shed.
• The Wall and W2 are red and black graded respectively; both assume confident technical descending and good fitness.
• Mobile coverage is patchy in the upper forest. Riders should carry a paper map or downloaded GPX, plus spares.
• The park sits within a working forest. Trail diversions for harvesting are signed at the trailheads.

A helmet-cam descent of Y Wal (The Wall), the red-graded singletrack loop that put Afan on the international MTB map.