There are kid-friendly kayak paddles. Critical factors to consider when selecting a paddle for your child are weight, paddle length and ease of holding. Children under 4 feet tall should avoid a paddle that is longer than 182 centimeters. Kids who fall between 4 and 4 and 1/2 feet tall are best off choosing paddles between 182 and 190 centimeters long. Children who are closer to 5 feet tall should choose a paddle between 190 and 210 centimeters. Children taller than 5 feet should follow the same size guidelines as adults.