I have cleaned several of the boats in fleet of Florida Boat Rentals of Vero Beach, including their large Tour boat. On that boat, I cleaned the Eisenglass (plastic-like windows) and seat cushions.
Tour Boat
Looking – Before 
After
Looking Out – Before 
After
Tour Boat Seats
Mildew on Seats 
Helm – Before 
After
View from Helm – Before 
After
Fleet Boats
Rendezvous Cleaned Seats 
Bow Seats Cleaned
Key Largo – Before 
After 
After
Sweetwater Cleaned Cushions 
Sweetwater