Is it necessary to buy an octopus card/airport travel pass for a 3-day in hk staying at usa hostel. itinerary is :
1. first day-usa hostel to ocean park,the peak, victoria harbor, madame tussauds,symphony of lights, starferry
2. second day-usa hostel to disneyland
3. third day-usa hostel to macau going back to the hotel then to airport
how much will it cost?