✔ 最佳答案
1. You can bring Euro to those countries and change there. It's easier to get
Euro in HK.
2. The answer to question no. 2 from the first person is not correct.
BNO and HKSAR passport holder don't neet visa to those 3 countries.
BNO visa free countries
http://www.fco.gov.uk/servlet/Front?pagename=OpenMarket/Xcelerate/ShowPage&c=Page&cid=1123950039320
HKSAR visa free countries
http://www.immd.gov.hk/ehtml/topical_4.htm
3. If you go to there by flight, it's more convenient via Vienna. For flight,
you can check
www.skyeurope.com
www.flyniki.com
www.lot.com
If you travel by train from Vienna, you can check the rail website.
www.oebb.at (in German)