I found this spot while looking for something else entirely, then I noticed the entrance and thought .. it's just wrong that such a place is not celebrated with a geocache. However, recent rainfall required me to wear gumboots to make my way through, but no other obstructions. Obviously, do not attempt during heavy rainfall or flooding.
GPS reception here will be an issue. See the hint if you're having trouble.
DO NOT attempt to access this cache from the Federal Highway. Exit at Eaglehawk and head up via the parallel "Federal Hwy Service Road" for about 1.5km and head under the road to Majura Lane. Access is safe, easy and discreet from here.