Tides and Currents Introduction to tidal theory and using the tide and current book Tides are a paddler's best friend when you know their next move. The theory behind the tides and currents is simply explained in this course. You will learn how to use a tide book to determine water levels and current rates for a given area and calculate information for both primary and secondary ports. We will supply the materials needed for this course. Weekday Evenings at the Jericho Sailing Centre Cost: $39 Location: Jericho Sailing Centre Time: 6pm - 9pm Mon - Feb 18 2008 Thu - May 15 2008 Tue - Jun 17 2008 Tue - Aug 5 2008 Thu - Oct 16 2008