Travelling during a geocaching finding adventure from Port Lincoln -> Kimba -> Iron Knob -> Port Lincoln, we came across this parking bay. It is suitable for quick stops or the overnighter. There were plenty of places slighty off the main road with various tracks to follow to find a suitable "camping" spot. We noticed lots of cans and bottles lying around hence the cache name. There are no restrooms here however!
You are looking for a rectangular container with swaps inside.
Happy caching and stay safe!