The road ends at Portavadie, once the site for an oil construction yard developed in the heady infancy of North Sea oil exploration. The yard never got into production, but Portavadie now has a new role as the terminal to Tarbert, at the head of the Kintyre peninsula. It's about 24 miles to Strachur along this route. Further up the A815 a right turn on to the B880 will take you along the shores of the Holy Loch, through the villages of Kilmun, Strone, Blairmore and finally Adentinny, at the mouth of Loch Long, before the road swings over the hills to Whistlefield, where it again joins the A815. Kilmun houses an Arboretum, containing over 180 acres of trees from all over the world, and was first planted in 1930.
Entrance is free, and the park is open from dusk to dawn daily.
Much of the area is part of the Argyll Forest Park, and maps detailing forest walks can be obtained from the tourist board offices at Dunoon or Ardgartan.