I have a Garmin 541s GPS on the new boat. I do not have GPS waypoints saved to my computer but I have a written list of the coordinates for all of my spots. Now I have to get them into the new GPS. I assume that I will need a program for my computer first and then put all the info in that program and then download to a SD card and then into the GPS. If I am correct, what program should I use. Some say Mapsource but I have NO clue.
