The journey starts in Broadbeach South on the Gold Coast. Travel south to Coffs Harbour, then continue to Nambucca Heads. To maximize savings, use a Seniors card to purchase a Country Pensioner Excursion ticket for the portion of the trip between Tweed Heads and Nambucca Heads. This reduces the cost of the entire journey to a mere $3, with the initial leg from Broadbeach costing only 50 cents.
State and territory links to Seniors Card application pages
https://www.cardhacks.com.au/state-links-to-seniors-card-application-pages/
Information about the Country Pensioner Excursion fare.
https://transportnsw.info/tickets-opal/regional-tickets-fares/country-pensioner-excursion-ticket-cpe