That's one of the Davy Crockett Explorer Canoes that they used to have at MK. They were closed in 1994, but they still have them at
Disneyland.
The canoes actually do still exist at MK, but they're not available to the public. There is an annual "Canoe Races of the World" (aka C.R.O.W.) that CMs participate in. But I don't know if they've been holding the race during the last couple of years.