Location: Rural Adelaide

We had a number of failed missions last year to find this tunnel. Information about its location was scarce. A much needed tip-off directed our search to a new, nearby area and in early November we found it. Elated we marked it on our maps for future visits.

The Apostles Tunnel was rock-blasted back in the 1920’s. Its purpose was to hold a large water main which transferred water from an up-stream reservoir down to the higher levels of suburban Adelaide. It became redundant with the commissioning of the Anstey Hill Water Treatment Plant in 1991 and the pipe was removed leaving large concrete supports that now line the tunnel.

No longer in use, The Apostles Tunnel lays forgotten within the side of a mountain. Off the beaten track, we take you underground so you too can see inside this dark and evasive tunnel…

Keep up-to-date with what we’re exploring in and around Adelaide; and follow us in real time by following our Instagram feed: awesomeadelaide or our Facebook feed: Awesome Adelaide.

For those keen on underground exploration of tunnels, cavities, drains, mines, and caves, check out Adelaide's DARKSIDE Underground Exploring Group.

Also, to read more about awesome Adelaide places to explore, take a look at our Site Map.