I don't remember much but what I do remember is that a group of teens go to a island to protect the indian burial ground, from developers, that is on the island. I think its in Oregon or Coastal Canadia. They row out to the island and camp out on the beach until a storm make them seek sheleter in a cave. Then their chassed by some one and the only way to get away is to swim through an underground lake in the cave?

It's like the goonies but it is not the goonies, I've seen that a hundred times.

Please if you know what this is, tell me cause its been driving me crazy.

The goonies? The Goonies (1985)