In 1939 a water tank was built on the northeast slope of Hummock
Hill to supply water pressure for fire fighting and domestic
mains.
Whyalla was divided into three areas and water was turned on in
each area twice a week between Monday and Saturday. No water was
available on Sundays.
The water tank is visible from GZ, although the storyboard with
the above information is a bit further up the hill. I didn’t
place the cache there because it would have been too close to an
existing cache.
While you are unlikely to have muggles nearby, other than in
cars on the nearby road, be aware that you could be seen from the
lookout carpark on top of Hummock Hill.
Cache is a camouflaged micro – tweezers might come in
handy to extract the log scroll – and please remember to
bring your own writing implement.
You do not need to leave the trail to find the cache.
