Group 1: Dragon Boat Culture - Dragon boat racing has roots in ancient Chinese traditions, evolving from rituals and festivals into a competitive sport [1] - The dragon boat is typically 12 to 22 meters long for racing, with some traditional boats reaching up to 30 meters [1] - The sport emphasizes teamwork, with paddlers synchronized to the beat of a drum, symbolizing unity and collective effort [1] Group 2: Modern Water Sports - Rowing originated from competitions on the Thames River in the 17th century, featuring athletes rowing backward [1] - Rowing boats vary in size from single-person to eight-person, with lengths ranging from approximately 8 meters to 18 meters [1] - Kayaking, derived from Inuit designs, is characterized by a sitting position and double-bladed paddles, with typical lengths between 3 to 5 meters [2] Group 3: Canoeing and Other Traditional Crafts - Canoeing has its origins in the water activities of Native Americans, focusing on balance and control with an open design [3] - The sport of kayaking and canoeing includes challenging rapid courses, requiring both speed and skill [4] - Traditional Chinese watercraft, such as pole boats and colorful boats, reflect local culture and practical uses, though they are not part of a competitive system [4]