Is located within Tunnel Creek, 900m south east of the parking area / barrier at the end of the Glowworm Tunnel Road. This creek named after the Glowworm Tunnel just happens to have at its headwaters a number of tunnels, the largest being a long curving tunnel with its own tumble of dry rocks. It was over 30m high and 10m wide. The length was over 70m. Named by Yuri Bolotin on Bush Club walk, 11th January 2016.