Fishy Stones(1990)

After a well-executed jewelry store heist, two amateur thugs go on the run. But the police are not too far behind, and after a chase through the countryside, the thugs are apprehended - but only after they stash their loot in a clump of nearby bushes. When two best friends head off into the wilderness on a camping expedition together, luck seems to be on their side when they discover the hidden stash of diamonds.