I have done some searching on the web about the Barossa line and tourist sites and the facts are .
Passenger trains finished late 1968 ? . Barossa wine train finished 2003
So between 1968 - 2003 it was Steam ranger and the AN Explorer train and Barossa wine train running tourist trains on the line .
The BWT ran 3 services a week which took 90 minutes to get to Tanunda from the Adelaide train station . I take the train was express .
Different tourist sites have the journey from Adelaide central to Tanunda by car as 70 to 90 minutes depending which way you go by road .
At the moment there is a train service from Adelaide to Gawler to connect with a bus service ( link SA ) which takes 1hr 45 minutes to get you to Tanunda . 9 connecting services Mon to Fri , 4 connecting services Saturday , 2 connecting services Sunday . Bus ticket cost under $10 and then metro ticket cost .
Tanunda is 70 train kms from Adelaide . Of which Gawler central ( end of the metro line )is at 42 kms .
Which leaves 28 kms of track to Tanunda which is not being used anymore .
So could a tourist train pay for the up keep for the 28 km line by it self . I don't think so as it might need to run 7 days a week and where would all the tourist come from . ( If the train was volunteer only it might be a different story & the BWT was a business )
Maybe the only way to keep the line open would have metro trains go all the way to Tanunda to help pay for the line with a tourist train running 3 days a week . But then you wouldn't need tourist trains to get to Tanunda.
If The Barossa line closes or should it be when ?
I hope that there could be a farewell trip on the line . But yet again what is on broad gauge . Adelaide metro train or maybe a NRM Red hen special .