Crol, commonly known as the front crawl, is a popular swimming stroke characterized by a flutter kick and alternating arm movements. Swimmers lie face down in the water, using a streamlined position to minimize resistance. The arms move in a windmill motion, with one arm entering the water while the other pulls back, allowing for efficient propulsion. This stroke is often favored in competitive swimming due to its speed and efficiency. Swimmers breathe by turning their heads to the side, coordinating their breath with their arm strokes. Mastering crol can enhance overall swimming performance and endurance in the water.