From Overton Hill car park the route climbs gently almost all the way. After the initial few hundred yards of good track the ruts start. It is possible to negotiate them by careful selection of path but it makes for a tiring and slow trip. The last mile to Hackpen Hill is on good track and becomes downhill.
Draining on the batteries, the ramble is best done from Overton Hill so that you can turn around if your batteries get low and make use of the slight down-hill to help with getting back.
About 2 miles from Overton, the route is joined on the left by Herepath (or Green Street or Wessex Ridgeway) coming up from Avebury and opposite on the right is Fyfield Down, National Nature Reserve. This important area is part of the Avebury Monuments as it contains many Sarcen Stones which were used in the construction of Avebury and Stonehenge. The stones are also called "Grey Wethers" as they can look like a sting of sheep from a distance. (A wether is a castrated ram.) Fyfield Down is also a Site of Special Scientific Interest because of the rare plants and lichens growing there.
Further on, on the left, is a restored Dew Pond.
On the northern slope of Hackpen Hill is a small White Horse cut into the chalk. You need to descend the steep, fast, road to view it. It was cut in the 19th Century.