Do you recognize any of the names on the chart? I don't. This is the main port of the whole west coast of Florida, Tampa Bay and further south. This is the main cruising area of the west coast of Florida. Here is an example of how a normal map would look.
I am sorry the pictures aren't as large as I thought, but you can still see Tampa Bay plainly marked, and below that Sarasota Bay and further south Charlotte Harbor and Punt Gorda, the places you would be looking for as you plan a cruise of the west coast. I am sure the names Bird Key or Whiskey Kay, or Perico Island, would mean as little to you as they do to me.
Get on the ball people and write to cartography@garmin.com. If you want more illustrations, I have more, just write and ask, but believe me when I say, this same thing is true of any place you look.