Swimming is often the most daunting part of triathlon training, especially for athletes who don’t come from a swimming background. Technique is everything in the water, as even small inefficiencies can translate to significant time losses or increased energy expenditure. Incorporating targeted swim drills into your training routine can improve your stroke mechanics, boost efficiency, and help you glide through the water with confidence. Here are 15 essential swim drills every triathlete should include in their training plan.