Castle Combe is located off Junction 17 or 18 of the M4 and is signposted from both Junctions. The circuit has in the past hosted rounds of the British GT and Formula Three Championship but sadly in recent times noise restrictions have limited the racing schedule. Viewing at the circuit is fantastic, with access to virtually the whole outside of the circuit. The onsite facilities are basic but the food is very good and is traditional. There are no garages on site but the paddock does have a large amount of hard standing.