If you follow from the parking waypoint you will find a public footpath which follows the north bank of the river. This footpath will lead you on a pretty and quite route to the cache location. Just to warn you a local farmer uses the land for grazing and there are currently Sheep lambing as this geocache finds its new home.
You're looking for a 5 litre box made of clear plastic. There is a clip on lid, Logbook and a note telling you you've found it. I have left a nice little selection of goodies for swaps.