With Flex Passes you get CitySightseeing Uptown and Downtown Hop-on Hop-off bus tours as only one of your attraction choices and the ticket is valid for 72 hours.
Using The Sightseeing Pass on the CitySightseeing Buses:
Sightseeing Pass holders do not need to visit a desk and stand in line to collect double decker bus tickets. Simply scan your Pass on the CitySightseeing bus, and start enjoying your tour instantly. Less waiting, more enjoying. ONLY with The Sightseeing Pass.
Please note: Big Bus Classic Tour ticket is valid for 1 Day and includes the Uptown and Downtown loops.