The three friends are inseparable and face exciting competitions together with the BUDs in the summer camp: Bebe, Ursula and Daphne. On a tree trunk in the water, the girls have to show who can keep their balance longer, but that’s pretty shaky. With the red and yellow flag, the girls can point the way and then it is time for the horses. Pru jumps on Chica Linda and Daphne on horse Marbles and then the competition begins. A great horseshoe badge is waiting for the winner. The Challenge on the River play set contains the characters Pru with horse Chica Linda and Daphne with horse Marbles, as well as a river with a trunk and tree for the balance game and a red and yellow signal flag for the flag-signal competition.