Roller-skates and a bottle of Gatorade are responsible for Julie Kindstrand’s skateboarding career. When Julie was 11 her father, “Santa Ana Dave,” used to take her roller skating at a rink near his plumbing and tile job in Rancho Santa Margarita, Calif. Then he heard about the opening of Laguna Niguel Skatepark, so he decided to give it a go.