9 times out of 10 when we coach adults that have taken to swimming late or didn’t squad train as children they have the same issues - they don’t engage their core and allow their hips and feet to sink and they have a poor kicking technique. The following video isn’t the most exciting but contains some fantastic pool-based drills. I frequently use the first…the fly kick or your back and think it’s a brilliant drill. Really gets that core working. You should feel it within 25m.