We're tracking some four-legged Olympic athletes for today's Geo Quiz.

More than 200 horses from around the world are being flown in this week to compete in equestrian events at the Summer Games. You might expect them to be heading for Beijing. But they're not.

219 horses from 48 countries are arriving this week at Sha Tin, a district of Hong Kong.

Hear our interview with Martin Atock, managing director for Peden Bloodstock, the company that's in charge of transporting the Olympic competitors to Sha Tin.

According to the International Equestrian Federation (www.fei.org ) "The disembarkation process of the horses, their attendants and the vast amount of equipment that was flown in ran extremely smoothly. The horses underwent preliminary tests immediately upon arrival and were declared to be remarkably well. They were in the stables less than two hours after landing. So, while human passengers were still queuing to have their passports checked and collect their luggage, the horses were enjoying a good roll in the shavings."