Devil’s Dyke is a 100 metre deep V-shaped dry valley on the South Downs in Sussex in southern England, 5 miles north-west of Brighton. It is managed by the National Trust, and is also part of the Beeding Hill to Newtimber Hill Site of Special Scientific Interest.
Wikipedia.
Steep but beautiful. With the gradient I felt like I had walked 10 miles! In fact it was 4.5.
Included was a stop off in the lovely little village of Poynings for a pint at the pub.
Milly Space 