Where are the holes in the bottom of your boat?

Do you know where all the through-hulls, transducers (depth sounder and speed log, for example), and the other holes in the hull near and below the waterline are located on your boat or a boat you are using? Are there tapered soft wood plugs tied near each through-hull in case something breaks or is damaged? Create (or find) the diagram that indicates where these holes are, and make sure you can get to the areas quickly in an emergency. If you have to move lots of gear to reach a damaged through-hull you may be working in the water. It’s amazing how fast water comes in through a one or two-inch/25-50mm hole in the bottom of a boat!