Stairway Falls Lamington National Park

Hi all,
Does anyone have any info or GPS points on where the track actually starts to Stairway Falls via Bull-Ant Spur in Lamington NP? I know there's several small areas off to the side of the road before O'Reilly's to park the car, just not sure which one is the start of this particular track... I've done the walk to the falls already via O'Reilly's -> Yerralahla Pool on the west canungra ck circuit, but I'm keen to get there a bit quicker & try a different route this time. Any info appreciated.
Cheers
Does anyone have any info or GPS points on where the track actually starts to Stairway Falls via Bull-Ant Spur in Lamington NP? I know there's several small areas off to the side of the road before O'Reilly's to park the car, just not sure which one is the start of this particular track... I've done the walk to the falls already via O'Reilly's -> Yerralahla Pool on the west canungra ck circuit, but I'm keen to get there a bit quicker & try a different route this time. Any info appreciated.
Cheers