I've looked at the Postbus website and one of the ways to get to the ice caves in Obertraun appears to be to go all the way from Bad Ischl by bus (as the trains are less regular).
I can see from the website that I would need to pick the 542 bus to Hallstatt Gosaumühle and then change over to the 543 and get off at Obertraun Dachsteinseilbahn.
I have two questions:
1) On the website it says the transfer time is only 1 minute. Does the 543 bus usually wait for the 542?
2) In terms of tickets I understand i'd need to buy them from the driver. Would I buy a ticket all the way to Obertraun from the bus driver at the 542 or do I buy one a ticket from Bad Ischl to Hallstatt Gosaumühle on one bus and then a ticket to Obertraun when I board the 543?
Many thanks in advance.