As Ann says, knowing what the source material is would make answering a lot easier.
What you describe sounds like the results from a source video shot with rocks/cliffs etc which you want to be static with moving sea in the shot? If so, you will find that the jelly effect is very hard to avoid. The problem is even worse if the shot was taken from a boat.
The new Premiere Warp Stabiliser does a better job on this kind of shot than any of the half dozen other stabilisers I have used in the past.