In Autumn, Cross Lane is a conker hotspot, providing the parakeets haven't eaten them all. Once a year the drifts of fallen autumn leaves contain a buried treasure. Conkers can be found at every turn. While some will be remarkably soft and crushed under the wheels of an oncoming car, however, the strongest will survive and be ripe for the taking, they will make a fine addition to anyone's conker collection.
Nearby is also the tennis club and River Shuttle, so you can always go on to geocache there or play tennis if it isn't autumn. Watch out for muggles as it branches out on to a main-ish road. The container is an magnetic nano, around the size of a thimble.