The National Railway Museum in Port Adelaide has special Father's Day freebies in 2015: free entry for all fathers accompanied by a paying adult. Just print off a copy of the voucher at the link, show it at the door and you're in for free.
Father's Day 2015 is also National Train Day, and there are free steam train rides for all to celebrate our fabulous railway history in Australia. The cafe car will be open serving tea and coffees for a gold coin, but all dads get free tea, coffee and biscuits too.
If you're feeling lucky why not enter the raffle to win "South Australian Steam Memories"? Valued at $65 and with 136 pages, it might be enough to keep Dad amused till next year.