The Bishop's Glen Walk starts at the West Bay Car Park in Dunoon. From here you make your way up to the reservoir behind the town by following the Kilbride Road that climbs in a northwest direction from the car park. Once at the reservoir, the way becomes a good quality forest path which traverses around the reservoir.

This Grade B walk is approximately 2 and a half miles long and takes around 2 hours to complete.

Bishop's Glen Reservoir was the original site of the Dunoon Waterworks which closed in the 1970's as the population expanded in Dunoon and the surrounding areas. The increasingly heavy demands made upon the reservoir forced the town to look to nearby Loch Eck as an alternative fresh water supply.

The walk has a degree of built in flexibility in the shape of numerous side paths, loops and detours to extend it if you so desire. You can take the easy option and complete the circuit around the reservoir by making use of the stairs to negotiate the few steep sections along the way.

After returning to the starting point, you can choose to extend your walk by hiking from Bishop's Glen to Dunan (Grade C). Much of the trail is through the Bishop's Glen Forest which affords occasional views over the Firth of Clyde. When emerging from the Forest the view over Dunoon is well worth the walk itself. The 175 metre pinnacle of Dunan is an old volcanic plug which is the cold remains of a volcano's central core. From this viewpoint, the panorama takes in Benmore in the west all the way across to the Holy Loch, Sandbank, Kilmun, Kilcreggan, Gourock and in good weather down the Clyde coast to Largs.