Please be careful as the site is on a large slope and has some drops over some sandstone rocks.
I've marked the terrain difficulty fairly high due to the big slope and potential for muddy terrain in winter, but if you can I'm sure it will be worth a visit.
Almost falls into the category of cache n dash as the cache isn't too far from the road, BUT please consider how you park up as Gravelly Bank is both busy and narrow.
There are two footpaths into the area but it's easier using the lower gated footpath.
There might be GPS signal issues during the summer due to the large trees, but without giving the game away use the hint and you'll be fine.
Sadly the wood appears to frequented by the sort of people who like to leave plenty of litter.