Material: origami.

1. First, fold the square origami diagonally in half, and then unfold it (fold it out).

2. Then fold the corner inward along the middle crease (strictly aligned).

3. Then turn the origami over and fold it in half.

4. Then fold the corner according to the position in the picture (be careful when folding).

5. Then unfold the folded part of the origami and a clear crease appears, as shown in the figure below.

6. Finally, fold it along the crease to the other side (as shown below), and then fold it according to the crease above (fold it strictly according to the crease, otherwise the folded boat will not look good).