Of course I know how to enter Class C! It's nice to gather a little info about sightseeing when you have never really taken an airplane up to just look around a populated area before. I've been in Columbus' Class C many, many times and I have flown to all of the nearby satellite airports. I'm familiar with it.

Columbus does get busy at times. I just thought it would be nice to give the controllers a heads up so everything goes as planned and I don't get turned away.