This circuit is mostly on public footpaths / bridleways, but there is some minor road involved. See SGB 01 ~ Shamley Green Bipedal-motion for details.
This cache is a camoed FCW pot with a 35mm film can inside it.
The route from SGB 18 to SGB 17 involves 150m along the busy, no footpath, B2128 (past the site of The long and winding road Stage 4). I seriously recommend keeping children under tight control along here, walk on the right side of the road to face oncoming traffic, and carry a light bright object in the day or torch at night to hold slightly out from your body to the left to make it easier for cars to see you. Be very careful when you burst out of the hedge onto the road, and mind your head on the branch.
Good hunting. You may also be interested in my other caches.