As we near the end of 2017, and end the year with the most over indulgent festival of them all, our thoughts often turn to getting fitter in the New Year. Our New Year’s Resolutions are full of good intentions of getting in shape and getting fighting fit, and this is the busiest time of year for new gym memberships, many of which are already gathering dust by the end of the January. But there is an easier way to keep yourself fit, to get into shape and have an awful lot of fun whilst doing it. Swimming is one of the best, and cheapest forms of exercise. It is…