Take a square paper.
Give a diagonal fold it to joining the two opposite corners together.
Open the fold and give diagonal fold to the other side.
Open the fold. You will get an X shaped crease passing from the paper. Take two corners of the paper and fold it to the center point meeting the tip and the center point.
Open the fold and give another fold putting the tips to the crease we just got.
Give a turn overlapping the fold from both the sides.
Flip the paper and fold the two pointed tips to the center.
Open the fold and fold it to the center crease we just got from both the sides.
Give an overlapping fold on the folded sides.
Do the same with the other side.
Fold the colored corners of the paper from all the four sides.
Then give a slight fold again on all the folded ends.
Then fold it slightly from the side corners.
Open it from the center carefully turning the inside part out. Your boat is ready.