This is a vague description, but I have not been able to identify this game for the life of me - nor have I been able to find it in MAME.
It was a boat racing game that I believe came out in the early to mid-nineties. All that I can really remember about it is that you were out in the ocean for a little bit and you had to safely navigate around buoys - maybe like a slalom. But the real reason I remember the game is that you eventually end up at a stage on a river and there are city skylines in the background and one of the skylines is Albany, NY (where I grew up). It's quite recognizable because of the Empire State Plaza and The Egg (for those who have been to Albany).
I thought that it might have been a bootleg of Hydra, but I just don't see it - especially because I think I would have remembered the yoke controller.
Thanks