Training with the pack and 10 miles feels as much as I want to walk. I've been trying to visit my local iron-age fort for ages but keep getting lost - this time we managed it. It is a scheduled ancient monument and is now part of a golf-course so it is not possible to wander about on it, but it retains some wildness and remoteness. The gorse is flowering and the birches, pines and heather give it a different character to nearby Richmond Park.