Answered by Jennies from Germany | Oct. 11, 2015 01:07
1. Well, after completing immigrationn procedures, you can see a round counter in the arrival hall (public area), where you can get a card
2. First of all, these are On-Loan Card, Sold Card and Airport Express Travel Pass for you to choose. The first two types can make you enjoy some discounts when you take the public transportation. Airport Express Travel Pass contains one or two Airport Express single journey(s) plus 3 consecutive days of unlimited travel on MTR (except Airport Express, East Rail Line First Class, Lo Wu and Lok Ma Chau stations). You can choose the most suitable one according your duration and concrete situation.
3. Yes, of course you can use this card to travel between these two places.