Theer was a small protest at the latest London Olympic test event with concerns the equestrian 3-day event could damage the historic Greenwich Park.
The Park has views over the Thames and is part of the Greenwich World Heritage site.
The British rider William Fox Pitt hopes the event will add to the park's history, but they respect the right to protest...
Fox Pitt is in 9th place after the dressage, 3 places ahead of the best placed New Zealander Andrew Nicholson, while Mark Todd is 24th.
The British rider Piggy French leads the way.
The cross country is tonight.