The Yakima BoatLocker is a 10-foot cable that secures your boat to your roof rack. It can even attach to other immovable objects, like a tree. That comes in particularly handy when you're camping, so you don't have to sleep with one eye open to make sure your boat won't get swiped. Plus, the included PaddleCuffs ensure you'll never be up you-know-what creek without a paddle.