Replaying Ocarina of Time 3D right now. Realizing that the reason I was stuck in Zora's Domain for so long as a kid is because when you find Princess Ruto's letter, it says "Come save me, I'm inside Jabu Jabu's belly. Please don't tell my father." So I didn't, I tried all sorts of crazy things to sneak around her dad. You're actually supposed to rat out your friend in order to advance the story.