This is a great area for walking and very popular with dog walkers so beware of Muggles. There are a number of different walks round here so once you've found the cache you can either continue to find the rest in the series or adventure along some of the other paths.
The cache is off the path so you are less likely to be disturbed while searching, it is a small vial container please bring your own pen, it's too small for trackable and swappables. The name of the cache should give you a bit of an idea where it might be, but if you need some more help look at the hint.