This boat has been exposed to all the elements for over a year and it was in the water for several weeks without bottom paint, thus its bottom and below the waterline was covered in barnacles and worms. I am going to show the before pictures so you get the idea of the condition of this boat. Then I will show what can be done with it.
The Bow 
Starboard Seat 
Rear Seating
Long View 
Helm 
Forward Seating
<–Barnacles–> 
This boat, as you can see, was a challenge. I had to pressure wash the deck and it took multiple applications of mildew remover on the cushions. Barnacles required scraping followed by repeated applications of acid.
Here are the results.
The Bow 
Starboard Seat 
Rear Seating
Long View 
Helm
No Barnacles 