A dad is sitting at the dinner table with his kids.

A father is seated at the dinner table with his children.
He looks at his kid and says, “I think I finally figured out the perfect joke.”
His kid, excited to hear it, inquires, “What is it, Dad?”
The father said, “I’m going to tell you the punchline first: ‘Why don’t you ever play hide and seek with mountains?'”
The son asks, “Uh…why?”
The father smiles and replies, “Because they’re always peak-ing!”