This movie is fairly old. I'm 19 now last time seeing it I was probably 9.

It's a movie about a girl who goes on a boat with her friends they're looking for treasure. They go inside of this cave and it has a lot of rocks and things. The rocks end up falling on the girls leg and no one can get them off. One friend stayed with the girl while the others got back on the boat and went back for help. The girls dad and boat police come back to help..

Ha I think that's it... Anyone knows what I'm talking about?

If there were just two girls, I'd guess this:

Gold Diggers: The Secret of Bear Mountain (1995)
Starring Christina Ricci, Anna Chlumsky, Polly Draper
IMDb synopsis:
A city girl teams up with a tomboy to solve the mystery of Bear Mountain, Molly Morgan, and the buried treasure as well as learn about true friendships.


Gold Diggers: The Secret of Bear Mountain (1995) - IMDb (http://www.imdb.com/title/tt0113188/?ref_=nv_sr_1)

Here's Part 1 on YouTube:
Gold Diggers: TSOBM - Part 1 - YouTube (http://www.youtube.com/watch?v=rG871BMxS0o)