Barbie Horse Adventures: Riding Camp
(Georgetown, KY, USA)
It's my fave game! You're Barbie and you go to a camp on an island where you get a horse to temporarily ride. You also get to dress Barbie in new clothes with camp credits you earn.
While at camp, you do challenges to earn ribbons to be able to ride new horses. I think the hardest challenge is where a boy wants you to find his toy ship.