Bike Routes Wales: 7 Hidden Trails Even Locals Don't Know About

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Bike Routes Wales: 7 Hidden Trails Even Locals Don't Know About Wales is packed with cycling routes that never make the glossy brochures. While Snowdonia and the Taff Trail grab the headlines, there are quieter lanes, forgotten drovers' roads and coastal paths where you'll barel...

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Last Updated:

5 Apr 2026

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Guides

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Bike Routes Wales: 7 Hidden Trails Even Locals Don't Know About

Wales is packed with cycling routes that never make the glossy brochures. While Snowdonia and the Taff Trail grab the headlines, there are quieter lanes, forgotten drovers' roads and coastal paths where you'll barely see another soul. Here are seven hidden gems worth seeking out on your next cycling holiday in Wales.

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1. The Black Mountain Pass (A4069), Carmarthenshire

Most cyclists heading to Brecon Beacons stick to the main roads. The A4069 climbs from Brynamman over the Black Mountain with hairpin bends, open moorland and views that stretch across to the Gower. It's only 20 miles end to end, but the gradients bite hard — expect sections above 20%. Best tackled in spring when the heather is out and the tourist traffic is thin.

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2. The Coastal Path Link-Up, Pembrokeshire

Skip the popular Tenby circuit and instead piece together the quiet B-roads between Marloes and Dale. The route hugs the Milford Haven waterway with barely a car in sight. Stop at Martin's Haven for views across to Skomer Island, then roll into Dale for crab sandwiches at the pub. Roughly 15 miles of flat, exposed riding — bring a windproof.

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3. The Mawddach Trail Alternative, Snowdonia

Everyone knows the Mawddach Trail from Dolgellau to Barmouth. Far fewer people ride the forestry tracks above it. Head up from Penmaenpool into the Coed y Brenin forest, following the old logging roads through Sitka spruce. The single-track B4416 back down is fast and completely empty midweek. A proper 25-mile loop with 600 metres of climbing.

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4. The Radnorshire Loop, Mid Wales

The roads between Knighton and Presteigne in Radnorshire are some of the quietest tarmac in Britain. This rolling loop through the Teme Valley passes ancient woodlands, ruined Norman castles and barely a village between them. The climbs are short but relentless — classic Marches country. Pack lunch because there's nowhere to buy any for a good 15-mile stretch.

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5. The Burry Port to Llanelli Estuary, Carmarthenshire

This section of the National Cycle Network gets overlooked in favour of the Gower. The flat path runs along the old industrial railway line past the Millennium Coastal Park, with views across the Loughor Estuary to Gower's southern beaches. At roughly 12 miles, it's ideal for families or a gentle recovery ride. The surface is tarmac throughout.

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6. The Hafren Forest Circular, Powys

Deep in mid Wales, the Hafren Forest sits at the source of the Severn. The forest roads here are wide, well-surfaced and almost always deserted. The full loop runs about 18 miles with steady climbing through pine plantation before opening onto moorland above the tree line. On clear days you can see Cadair Idris. In autumn the colours are outstanding.

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7. The Clwydian Range Traverse, North East Wales

This is Wales's forgotten AONB. The roads between Ruthin and Loggerheads wind through the Clwydian Hills with steep, punchy climbs and long descents into the Vale of Clwyd. The B5429 over the Horseshoe Pass is legendary among local club riders, but the lanes through Llandegla and around Moel Famau are quieter and arguably better riding. Allow a full day for the 40-mile traverse.

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Planning Your Trip

Most of these routes work best between April and October. Wales gets wet — there's no sugar-coating it — so waterproofs and mudguards are non-negotiable. Carry spares and food because many of these routes pass through genuinely remote areas with no shops or phone signal.

If you're planning a cycling holiday to Wales, these hidden trails offer something the well-known routes can't: solitude, proper Welsh scenery and the feeling you've actually discovered something.

Ready to plan your Wales cycling holiday? Get in touch and we'll help you build a route that suits your ability and ambition.