We had a similar issue with the carpet in this area on our 2006 288 when we purchased it. The carpet on the steps was "nasty" so I replaced these steps with cherry steps which I fabricated. The carpet at the bottom we shampooed with good results. Note, the previous owner was not one for keeping stuff clean and maintained, but the carpet in this area did respond with a mild detergent and a good scrubbing. If your carpet is trashed beyond recovery, I would take a utility knife to it, cut it out and replace with something (carpet) that comes close to original or look at a laminate that could be glued down. Hope this helps.

does not stay clean with kids

I will see what I can do as the only picture I have is on my old phone which has been deactivated. Boat is in storage 300 miles away, otherwise I could post a picture. If I remember, I will post a picture in May when I get back to the boat. One thing I didn't mention, for the finish, I used Minwax cherry stain followed by three coats of Minwax Polycrylic satin finish. I also used the ABS plastic piece that was fastened to the underside of the carpeted steps by fastening them to the underside of the new steps.