Wanborough is just off the A31, between Guildford and Farnham on the B3000. As you enter Wanborough from the A31, turn right up the lane by the first cottage at the unmarked crossroads with the wooden sign post marked 'Wanborough'. Go up this lane for some 100 metres and the car park for The Great Barn is on your left after The Granary. Postcode for The Great Barn: GU3 2JR
Or call Guildford Heritage Services on 01483 444751.