At a glance
Conwy Valley Cycling (LL26 0PN) — valley floor road cycling on NCN Route 8 from Conwy to Betws-y-Coed (~18 miles). Traffic-free sections near Betws-y-Coed. Conwy Valley Line railway accepts bikes for point-to-point rides. Gateway to Gwydyr Forest MTB network. Free. Best base: Betws-y-Coed.
About Conwy Valley Cycling
The Afon Conwy runs from the mountains of Snowdonia to the sea — 30 miles of river valley that the National Cycle Network follows on quiet lanes and traffic-free sections through Llanrwst, Trefriw, and Betws-y-Coed. The valley floor is gentle; the scenery is not. The Carneddau rise to the west; the wooded ridge of the Gwydyr estate closes in as you approach Betws-y-Coed; and the river runs alongside in the lower sections, clear and quick over its limestone bed.
Use the Conwy Valley Line for the return — the railway follows the same valley from Llandudno to Blaenau Ffestiniog, accepts bikes, and turns a one-way ride into a round trip with no backtracking. At Betws-y-Coed, the Gwydyr Forest trail network begins — 100 kilometres of waymarked mountain bike trails above the valley for those who want to leave the road behind.
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Frequently asked questions
The Conwy Valley offers a variety of cycling options along its 30-mile length from the estuary to the mountains. The valley floor has quiet B-roads and lanes connecting the towns of Conwy, Llanrwst, and Betws-y-Coed — these form the backbone of Lon Las Cymru (NCN Route 8) through the area and provide the most accessible road cycling. Traffic-free sections exist along parts of the valley, particularly near Betws-y-Coed where the river path gives an off-road option through the gorge. Above Betws-y-Coed, the Gwydyr Forest network (100 km+) provides mountain bike trails from easy forest roads to technical singletrack. The Conwy Valley Line railway runs the length of the valley and provides a convenient way to cycle one-way (take the train back, or vice versa).
The classic Conwy Valley road cycling route follows the valley south from Conwy or Llandudno Junction — pick up the NCN Route 8 signs and follow the B-roads through Tal-y-Cafn, Llanrwst, and Trefriw to Betws-y-Coed. This is approximately 18 miles one way and is largely flat or gently undulating through the valley floor, with the river and the wooded hillsides of the Gwydyr Forest rising to the west and the open moorland of the Denbigh Moors to the east. The return can be made by the Conwy Valley Line (the railway accepts bikes) or by completing a loop using the lanes on the east side of the valley. The views of the Carneddau mountains (particularly from the southern section near Betws-y-Coed) are outstanding throughout.
The Conwy Valley has some excellent family cycling options, though it lacks the fully traffic-free infrastructure of routes like Lôn Eifion or the Mawddach Trail. The best family-friendly option is the traffic-free path section near Betws-y-Coed, which follows the Afon Conwy and Afon Lledr through the village and is suitable for children on bikes. The quiet lanes through the valley floor (particularly between Llanrwst and Betws-y-Coed) carry light traffic and can work for confident family groups. For very young children or beginners, the nearby Gwydyr Forest lower roads provide a gentler forest cycling experience without significant traffic. Betws-y-Coed has limited bike hire options — check locally on arrival.
Yes — the Conwy Valley Line (operated by Transport for Wales, running between Llandudno and Blaenau Ffestiniog) accepts bicycles on the train, subject to space availability. The line serves stations at Llandudno Junction, Tal-y-Cafn, Dolgarrog, Llanrwst, Betws-y-Coed, and several other stops along the valley, making it ideal for point-to-point cycling (ride south, take the train north, or vice versa). Cycle spaces on the train are limited, so advance booking or early boarding is recommended on busy summer days. The combination of cycling and the railway is a particularly satisfying way to explore the valley — the scenery from the train is exceptional in itself, offering elevated views of the valley you have just ridden through.
The Conwy Valley is a key corridor within the north Wales cycling network. NCN Route 8 (Lon Las Cymru) uses the valley as part of its cross-Wales route — riders heading south from the north Wales coast pass through Conwy, down the valley to Betws-y-Coed, then over the Crimea Pass to Blaenau Ffestiniog and beyond. The valley also connects westward to the Gwydyr Forest mountain bike network (via Betws-y-Coed), southward to the Mawddach Trail (via Blaenau Ffestiniog and Dolgellau, with the Ffestiniog Railway covering part of that link), and eastward to the Clwydian Range cycling via the Denbigh Moors. For touring cyclists, the Conwy Valley is one of the essential Welsh routes — offering a dramatic entry into or departure from Snowdonia on two wheels.