As a family of surfers, we put great importance on our children learning to swim. Our son by age 4, has become very comfortable in a swimming pool. Now we have continued lessons to improve his stroke form. Here we got the pleasure of working with a Japanese swim instructor. They do private lessons, so they use lots of "tools" to get children focused on proper technique. Our son was having a bit of trouble with his front crawl stroke, so the instructor pulled out a surfboard to work on his paddle.