There was this american trained by an old chinese guy in which at the end of the movie , the guy was on a pier and the chinese guy was on the beach separated by bad guys . The chinese guy ran across the water to the amazement of everyone and they escape . I can't remember the name at all . Please help

That sounds like Remo Williams from 1985.

Here's the scene you're talking about though I can't find it in English.

Thank you so much :)