Starting at the river Rhine where the city's history began, I take you around St. Martin's cathedral and it's beautiful squares. If you like (and depending on opening hours) we can visit the cathedral and/or the Gutenbergmuseum (additional costs for admission). Next to the main sights and according to your interests I will tell you about the city's history, Jewish Mainz, German wine, local food, carnival, Chagall's windows and special attractions like the market breakfast or our Christmas market.
As a local I know this city inside out and can take you off the beaten tracks.
The walking distance for the standard tour around the cathedral is less than 1 mile.