Four hours from Moscow, then another hour of your classic last mile situation. On the Volga. Rafting, cave exploration. Quiet and very inexpensive ($50 cover accommodation, food, and unlimited horse riding). English-speaking instructor can be made available. Inexpensive car ride from Tver or even from Moscow can be arranged. Consider a stopover in Staritsa on your way from Moscow to Saint-Patersburg. For details please see www.russian-horse-rides.com