Notebook paper: Notebook paper is also thin and lightweight, but it is not as stiff as copy paper. This can make it more difficult for notebook paper boats to hold their shape. However, notebook paper is often more water-resistant than copy paper, so it may be a better choice for boats that will be used in water for a long time.
Construction paper: Construction paper is thicker and heavier than copy paper or notebook paper. This makes it more durable and water-resistant, but it also makes it more difficult to fold into a boat. Construction paper boats may not be as aesthetically pleasing as boats made from other types of paper, but they are often the most durable.
The best paper for making a paper boat depends on the desired use of the boat. If the boat will be used in water for a long time, then construction paper or notebook paper is a good choice. If the boat will only be used for a short time, then copy paper is a good choice.