Boat moving

OK, so you’ve got a bl00dy great boat and an even bigger bl00dy great dam. You’ve got a problem… the boat wants to get to the other side of the dam. What do you do? Any ideas? No? Why not build an even bl00dier bigger still boat-train and winch said small but still huge boat out of the water, up the hillside and dump it in the water at the top? Simple really.