Please click here for more information. Coed Llyn Mair National Nature Reserve , Coed Llyn Mair is part of Coedydd Maentwrog in the Vale of Ffestiniog, whichcontains the densest patchwork of ancient oak woodlands in Britain. This reserve, on the northern slope, is the largest piece. The trees grow on steep and rocky ground, the roots penetrating deep into cracks in the rocks. A deep gorge runs through the trees where mosses, liverworts and ferns thrive. There are also about 170 species of lichens here. The easiest path to walk is that in Coed Llyn Mair but others penetrate deep into quiet, peaceful areas. The Countryside Council for Wales is committed to creating opportunities for everyone to enjoy the countryside. National Nature Reserves are no exception. On some reserves the Countryside Council for Wales has provided additional paths. On others, access on foot is unrestricted and visitors are welcome to wander freely. Where possible, the Countryside Council also provide facilities to add to visitors' enjoyment of reserves such as bird hides, information points, guided walks and displays, and facilities for the disabled. Signs at entrances welcome visitirs to each reserve and provide basic information.       Reset Map Position About our location: Turn off the A487 at Maentwrog, onto the B4410 by the Oakley Arms Hotel and up the hill. You will pass a lake on your left side. You may park in the lay-bys opposite the lake or in the small CCW Coed Llyn Mair car park 200 metres on the right. Safety: The Countryside Council for Wales makes every attempt to ensure that your visit to a reserve is enjoyable and safe. But visitors should also be aware of their own safety. Please watch out for hazards and wear appropriate clothes and footwear for your visit. This work was commissioned by the Countryside Council for Wales as part of its programme of research into sustaining natural beauty, wildlife and outdoor enjoyment in rural Wales and its inshore waters.    Coed Llyn Mair National Nature Reserve Telephone  Website	Accommodation Beaches Events Restaurants Click on the channels above to get information on areas covered by the zoomable maps.