For VISA FREE shore excursions in St-Petersburg please look "shore excursion" section.
If you have/going to get Russian visa please choose "city tours" section.
If you have energy try "walking tours" section.
New "In addition" section has something special like caviar lunch or cooking class.
All St Petersburg guided tours are provided by the best locals.
Offer of 2019 is 10 % discount for any tour if you pay cash