Exit Highway 237 on Lafayette Street Great American Parkway exit. Turn left and go under the freeway. Follow the road to Layfette where the road ends and turn left. Going as far as you can you will be forced into a left turn. As that road ends, turn right and continue into the parking lot of the Marina.
This is a historic marina and has not been a working marina for some time. You will not find boats there and in fact, where the boats were is not marshland.