Wednesday 2 July 7:30 PM Navigation Refresher Course #4 – GPS use (Advanced). As part of the Navigation course currently underway, there will be an evening focussing on GPS use at an advanced level. Keith T and John E will be available to discuss the use of Garmin and Magellan units, including their associated software. The content of the session will be negotiable and will depend on the group’s expertise and instrument models. The session is free, and open to CBC members who already have some experience in using GPS units.