Courtyard tours are always a treat. Utrecht has so many lovely spots where time doesn’t seem to have had any effect! It takes about 2 hours to explore these places. If this might be too demanding, then there’s the option of a courtyard tour combined with a coffee/tea and cake break halfway.
Courtyard tours de luxe typically take 2.5 hours. The costs depend on the number of participants. The fee is the same as for any 2.5 hour-long tour, plus € 7.50 per person for coffee/tea and cake (tax inclusive).