First time here. I need to ask a question. I am upgrading my Garmin 12 to a mapping unit. I mainly fish and hunt. I know the specs of the 76s and the 60c. My question is the 60c a marine unit like the 76s? I really would like to have a color screen, I think this would help with the TOPO maps. Any information on these unit would be greatly appreciated by you experts. I might even try to cache once in a while who knows. Thanks in advance. Captsteve67