Make a Cardboard Boat

Step 3: Create the walls.

Cut cardboard into the height of the walls you want. It is easier to keep the wall in a strip so you don't have to tape them together and risk more leaks.

Line up the walls to the base. If you are going around a curve then mark it. Score the line and fold it so it goes around the curve. Keep doing this until you run out of cardboard and tape it down inside and out.

Tape all the sides on and any walls that need to be taped together.

If the base of your boat is sticking out, cut it off before taping it.