As you enter St Paul’s Retreat you immediately get to the first junction room — a small room with a ladder leading up to a manhole cover.

Continuing on and up you come to a waterfall junction with a large tree branch seemingly lodged within the ladder. Use it to negotiate your way to the higher level pipe and continue…

The normally reinforced concrete piping converts to steel before you exit into the daylight, signalling the end of another awesome tunneling journey!