This geocache is a bonus for completing the nearby simple Adventure Lab. You will find the final location after completing the Adventure Lab.
The smelting works were prosperous for the first couple of years, employing up to 500 men at the peak of production. However, due to the changes in ownership and ore supply, as well as the decision taken in 1898 by the government of the day to construct a harbour at neighbouring Port Kembla and not at the Illawarra Lake where the plant was located, the Dapto works closed in 1905.
Everything sat idle for some years until the area was used as a residential subdivision, although there are many pieces of history still scattered throughout the site.