There are two sections of established cycleway in Nant y Betws, the valley which runs from Caernarfon to Beddgelert. The first section starts by the castle in Caernarfon, as per Lôn Eifion, but splits off and connects to the village of Waunfawr via a series of lanes and tracks. This is a very pleasant route, but even better is the newly established multi-use section which links Rhyd Ddu with Beddgelert. This 7km route leaves Rhyd Ddu and tracks around the edge of Llyn y Gadair on the line of the old railway which carried slate from the Gadair-wyllt quarry during the 1885 – 1920 period. The views of the surrounding mountain landscape are superb. Snowdon, Mynydd Mawr, Y Garn and Moel Hebog are all fine mountains which add a strong element of grandeur to this beautiful valley.
The cycleway continues along the edge of the sprawling Beddgelert Forest. There is a large network of tracks in the forest, so make sure you keep an eye out for the Lôn Gwyrfai way markers. The route crosses and runs along side the Welsh Highland Railway, then continues skirting along the west side of the valley, emerging from the forest, before dropping down to Beddgelert.
For the Caernarfon to Waunfawr section start from the Slate Key car park on the harbour in front of Caernarfon Castle. Cycle south eastwards along St Helen’s Road for 300m until it is possible to join the cycleway. For the Rhyd Ddu to Beddgelert section the route starts directly opposite the entrance to the SNPA car park in Rhyd Ddu.