From the A82, take the short ferry journey over the Corran Narrows, and on leaving the ferry bear left onto the A861. Follow this road, ignoring any turnings off it, and after 20 minutes or so you’ll find yourself driving into Strontian.
In the centre of the village, turn right at the village green immediately after the police station. Follow that road round, and take the first right. The entrance to the campsite is in front of you as the road bears right.