The cargo capacity of the Prospector 18 model can only be described as massive. The Prospector lines produce a canoe that feels deceptively light and responsive, but there's tons of space to pack in a load of supplies for any expedition with room left over to toss in the kitchen sink. The P18 is a big boat with straighter tracking than our shorter Prospectors. It's perfect for the wilderness traveler intent on expedition style adventures or a large family wanting to travel in one canoe.