The same way you do when the horses are not in the olympics.
23 according to the website the chronicle of horses 2008 Olympics
most horses probably travel in style to the olympics: in airplanes made for them, or in horse trailers
By boat or airplane
23 look up the website the chronicle of horses 2008 Olympics
yes, horses and their riders compete in the Equestrian Events.
summer olympics: hunter, jumper, dressage and eventing(all three)