Take the Pacific coast highway to Mullumbimby NSW. Dalley st (becomes Jubilee ave) which becomes Coolamon Scenic drive towards (Crystal Castle).
(From here on the road is winding, please drive to the conditions (50kph max)
Turn right onto Goonergerry rd (also called Federal rd on some maps) keep going and follow signs for Minyon falls. You will turn right onto Repentance creek rd (Look for Rosebank/Lismore direction) continue TURN ONTO UPPER COOPERS CREEK RD towards MINYON FALLS continue and TURN LEFT ONTO MINYON FALLS DRIVE, THEN CONTINUE AND TURN RIGHT ONTO PEATES MOUNTAIN RD (RUMMERY PARK)
From Brisbane 3hrs approx
From Mullumbimby 40 minutes
From Coffs harbour 3hrs approx