Using shovels (among other things), we popped the foam out in chunks. Although the top portions were dry all along the port side and the top portion in the centre, the starboard side and along the keel was absolutely soaked. Some chunks of foam were so wet they were like lifting concrete blocks.

Although there are no wood stringers there are a few reinforcing pieces that are pretty wet - not rotten but well soaked. They'll probably need to be replaced.