As Finn's little sister Gabi knows, position and timing are the keys to catching the perfect wave. Lynn Jane Bate explains where you need to be and what you need to do. For beginners, catching the white water is a great way to start. You can practice the "pop-up," standing up your board until you've mastered it. When you're confident in the shore break, you can move to deeper water and catch a wave before it breaks.