I'm not sure if it is possible - the Fortress is not included in the Best of the Best group itinerary. You should book All St. Petersburg group tour which includes Peter and Paul Fortress and Cathedral (there are the Czar's graves, it opens at 10.30) or a private itinerary.
Best Guides Group
in Northern Europe & Baltic Sea
Posted
I'm not sure if it is possible - the Fortress is not included in the Best of the Best group itinerary. You should book All St. Petersburg group tour which includes Peter and Paul Fortress and Cathedral (there are the Czar's graves, it opens at 10.30) or a private itinerary.