This innovative Eco clock (made from paper, looks and feels like slate) is the perfect gift for any surfer, fisherman or simply anybody with a passion for the ocean. The innovative and convenient clock tracks both the tide and the lunar cycle, ideal for predicting tide times and all important harbour tide heights. As the moon determines the size of the tides, this clock will help you predict how big the tide is likely to be. If the clock is showing that the moon is full, then, inevitably the tide is going to be a big one! Simply set the tide movement to align with your local beaches high tide times and throw away your tide table!