This Prague City pass is valid for 30 days following its first use. Each attraction can only be entered once. Pass holders also receive a free guided bus tour through the city center, a free river cruise, and many other discounts and benefits. They will enjoy free admission to some of the best attractions in the city, including places like Prague Castle, the Jewish Museum, and St. Vitus Cathedral. The pass allows guest to save time without the worry of dealing with the lines at ticket offices.