This is #5 in the series 'Benji's Walk'.
It can become muddy, but isn't normally too bad.
You are looking for a box with plenty of room for swaps and trackables.
I have given a good hint for this one as I don't want people searching too much and ruining the area or the hide, please replace exactly as found to ensure the hint stays true, and make sure it is not too visable from the footpath.
Once you have found the cache continue along the by-way, turn left at the footpath marker, over the bridge and head across the field to #6 Owl's Barn.