Got a Garmin GPS with the accompanying Mapsource software? Altendorff noticed that there’s a menu item in Mapsource to view your routes in Google Earth, which is a great planning tool in conjunction with your charts, or a great way to reminisce about your voyages. Okay, you know about Google Earth, right? If you’ve ever been fascinated by maps or globes, you MUST check it out (and it’s free).