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Life and light in Glow Worm Tunnel

Wollemi National Park

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Glow Worm Tunnel is a habitat for glow worms and an enchanting walk for visitors. Watch our videos to learn how an old railway tunnel from the days of oil shale mining has taken on a new life.

Life in the tunnel

What are glow worms?


Watch glow worm expert Dr David Merritt explain what glow worms are and why they live in the tunnel.

Mining for light

Wolgan Valley railway heritage


Glow Worm Tunnel was built in the early 1900s as part of the railway line servicing the Newnes Oil Shale mine. When mining stopped and the railway was abandoned, the unused tunnel was free for glow worms to use as their home.

A hand-built track in the dark

Behind the scenes: Glow Worm Tunnel track


The track inside the tunnel was upgraded to include a flat path and handrail that helps visitors see the glow worms safely. Watch this video to see how NPWS did this without disturbing the colony.

Visit Glow Worm Tunnel

  • An image of Glow Worm Tunnel exit carved into a large rock wall with a family walking out to Penrose Gorge. Credit: John Spencer © DCCEEW

    Glow Worm Tunnel walking track

    Glow Worm Tunnel walking track is the fastest and easiest way to experience the wonder of this historic tunnel, lit by thousands of glow worms. It’s a favourite with visitors to Wollemi National Park, near Lithgow.

  • 2 hikers looking up at sheer cliffs on the Glow Worm Tunnel via Wolgan Valley loop, Wollemi National Park. Credit: John Spencer © DCCEEW

    Glow Worm Tunnel via Wolgan Valley loop

    Set aside a day to hike 9km through Wollemi National Park on Glow Worm Tunnel via Wolgan Valley loop. Marvel at the historic railway tunnel, a lush rainforest gorge, and rocky pagoda outcrops, on this special walk between Newnes and Lithgow.

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