To walk this path South from Porth Penrhyn is like walking hand in hand with River Cegin. This part of the route which runs between Porth Penrhyn and the village of Glasinfryn, was developed in the 1980’s and is also known as Lôn Bach. The disused narrow gauge railway upon which the path was built, was constructed by the Penrhyn Estate to transport slate from the quarries at Bethesda. Today, Lôn Bach is part of the Lôn Las Ogwen which continues South on its journey, stretching over the viaduct at Glasinfryn to Tregarth, past Penrhyn Quarry into the Ffrancon Valley.
Distance: 17.7 km / 11miles
Approx time: 3 hours
Ordnance Survey Map: OS Explorer OL17 Snowdon & Conwy Valley
Parking: Beach Road Bangor Car Park