Originally Posted by
pogonation
Thanks for all the replys. Isn't actually karneval time. Just a business convention in Cologne most likely. Actually booked everything now.. Doing mainz when cologne is busy and cologne for 2 days after that. Will be nice to get to experience both places.
Good to hear. I am actually sitting in Mainz atm!
When travelling between Mainz and Cologne do try to go on the train (the one stopping in Koblenz on the way, and not the more expensive high-speed Frankfurt-Cologne). This basically takes you up to Cologne all along the Rhine valley and views out of the window, sitting on the right side of the train in the direction of travel are great).