HALLS GAP'S GAP
Start at the wonderland car park. The coords will lead you along the walking trail that is used to get to the Pinnacle lookout. Instead of heading towards the 'Grand Canon', keep right and head passed the 'Cool Room'. Soon you will come to a spot where muggles sometimes come to rest or take photos, so stealth is definitely required to head closer to the geozone.
A bit of clambering over rocks is required but it is not too complex, the most physical part of the geocache is the hike up to geozone from the carpark. Once you reach the geozone cavern, use your geo-senses to locate the hidey hole or 'gap' the geocache lives in.
The box is a decent size and currently only contains a notepad and pen.
As always, please stay safe :)