UrbanFab…my kids are currently taking group swim lessons at the Matt Griffin Y in SeaTac as kayo above mentions, and they do have a wonderful children’s pool. They keep it much warmer than the average pool so it is more enticing to small children, and my boys love to get in it. They do offer private lessons, but you need to be a Y member. You could call them to see about availability and such though at (206) 244-5880. I couldn’t recommend the Matt Griffin Y and their swim lessons more highly though! We love it there!