Hundreds of horseback riders are galloping today from across Iowa to Camp Sunnyside near Des Moines. The 35th annual Pony Express Ride to benefit the Easter Seals camp is underway. Steve Bromm, spokesman for the Easter Seals Society, says the riders, with their donations, will be arriving at the camp Saturday afternoon for a variety of festivities, including entertainment and food. He says the big event is Saturday afternoon when all the riders parade into the camp.The amount of money collected will be announced Saturday night at the Victory Party at the Val-Air Ballroom in Des Moines. Last year, more than 306-thousand dollars was raised for the charity through the statewide ride.