[2] The road immediately crosses the Kinglas Water and turns west and then south-west, along the eastern shores of Loch Fyne.

[4] After a few sweeping curves where the A880 branches off, just north of Dalinlongart the road crosses the Little Eachaig River,[5] turns south-east, and continues beside the northern end of the Holy Loch on its western shores In Sandbank, at a T-junction with the A885 High Road (which leads to and from the northern end of Dunoon and links up with the A815 at East Bay), the road turns left towards the Holy Loch Marina as Rankin's Brae.

At the mouth of the Holy Loch, at the western shores of the Firth of Clyde, the road turns south as it leads through Hunters Quay and enters the town of Dunoon.

At West Bay, after passing the western end of Victoria Parade, the road turns south again as Pier Esplanade.

After leaving Dunoon, the road continues for a further 5 miles (8.0 km) south along the west bank of the firth, passing through Bullwood, Ardhallow and Innellan.