The title of this cache does not mean wear your best clothes, it acts as good advice plus it makes reference to the old underground reservoir nearby. It is best reached as part of a cycle ride between South Wonston and Wonston, using the Stainers Lane cycle track/bridleway. It is accessible via a farm road, which is a public road up to the corner where you can park at the side of the road, if you want a quick cache and dash. Maps show this as a dead end, after the corner the road is private and only goes to the farm.