"A large outcrop of granite boulders on the western slopes of Mount Alexander is known as Dog Rocks. The manager of Sutton Grange Station, Lockhart Morton, named these rocks in 1846 because they were the favourite lair of packs of dingoes. This is now a popular abseiling site." (Wikipedia)
The cache is a 1L cylinder with log, pen and numerous swaps. Please take care to ensure that it is well hidden, as many people clamber over this area regularly.
The answer to the question in the cache title...
...give it a little push!