I am looking for the title to an older movie about a boy that is sent to his uncles near a quarry. I think he had a dirtbike and there was some sort of zip line in the forest, he befriends a girl and they explore a monster that bubbles up in an old quarry lake. He uses some barrels with water to pump air into a helmet and dives down to the monster? Anyone know what I am talking about? Its is not the dirtbike kid.

The Quest (http://www.imdb.com/title/tt0091810/)

That's it!! I always thought it had kids in the title and it is also known as the go-kids, thanks.

You welcome.