Robina is great for cycling as it's pretty flat and has some good cycle paths. I've cycled around here a few times and it's a nice spot to feed the ducks and to have a break from the frenetic shopping experience of Robina TC. So you could cycle or walk to do this multicache (GZ is about 250m from the first waypoint).
At the first waypoint you will find the final coordinates for the cache.
The cache is a small bison container with log sheet only. Bring your own pen!
I've given the coordinates for a little off-road parking spot next to the lake, otherwise there is plenty of street parking available nearby.