The Barbury Castle Horse Trials get underway in Wiltshire today. They represent a chance for Great Britain's Olympic hopefuls, including Zara Phillips and William Fox-Pitt, to prepare for the London Games. Held on the Marlborough Downs, the event finishes on Sunday.
The Barbury Castle horse trials are taking place on the Marlborough Downs. Olympic horses and riders will take centre stage in the Eventing competition.