The size is one of the major issues. I can't see them going with new boats that are the same exact size. I'll look around to see if I can find more info on it but my guess is modified boats rather than brand new ones.The parts of it I could see were a light tan plastic and looked very clean/new, they had a piece of cloth draped on it with the word green on it and they weren't letting anyone board on them. 4 passed before a much older and beat up looking boat came up and the gates opened so we could board. The size was the same but they definitely looked like different boats. We got stuck at the end where jack is in the treasure room for about 10 minutes while they checked the empty boats in front of us.