Which will be more cost effective? Driving a car or taking the Gold Cost Light Rail?

Question to Gold Coast Light Rail

So $3.85 one way from Surfers Paradise to Southport. . That is $7.70 round trip.. Gold Coast #gclightrail

@gclightrail Hi @GoldCoastBlog that is correct - same as Gold Coast buses. go card will be used for #gclightrail travel and whole journey will be no more than a 2 zone fare: http://ow.ly/lL5eO