You are looking for a taped pee pot (don't worry, it hasn't been used). There is a spot you could park nearby or we highly recommend parking near St Mary's church and doing the church micro, twisted trunk, well 'Stone' me, come right by and a fun guy as a nice short walk.
Cache is on a relatively quiet lane but please take care as there are some idiots about who think they are rally drivers and use as a cut through. Due to this please be careful with geokids and geodogs although we regular walk this lane with ours.
Edit: just a quick update to say that the nearby parking spot has been covered due to a new road being created and building work. Please be careful if parking nearby