We'd planned a long walk (for us) of 19kms that we hoped would get us to, and around, a 2,200 year old hill fort. The photo was was taken not long before we decided it was a little longer than estimated (perhaps more like 25kms) so we had to be content with a view from afar. The hillfort is on the third hill to the right, and you might just be able to see some of the banks and ditches.
We had a well earned cider and feet up when we got back.