Even in an age of joystick docking, with pods and bow and stern thrusters on many new boats, you still may find yourself needing to use spring lines to get off a dock. First off, your boat may not have all those useful devices, and second, they may not always work. In any event, you’ll be a much more confident skipper if you – and your crew – know how to use springs, particularly if you’re in a tight situation or facing adverse wind or current. Here’s a great story, with diagrams and video, about how to leave a berth…