Draw a long, curved line for the bottom of the boat
Add two straight lines going up from each end
Connect the top with a flat line to make the boat shape
Draw a small rectangle or circle for the cabin
Add a triangle on top for a sail, if you want a sailboat
Draw a pole or mast in the middle
Add a window or two on the cabin
Draw a line inside the boat for the deck
Add waves under the boat
Color the boat with bright colors