Old Helensburgh Station
Historical landmark · Helensburgh ·

Old Helensburgh Station

Historical landmark · Helensburgh ·

Historic tunnel showcasing a large glow worm colony

muddy
wet
gum boots
slippery
historic railway tunnel
free
street parking
difficult terrain
Old Helensburgh Station by null
Old Helensburgh Station by Bronwyn Dennis (used with permission)
Old Helensburgh Station by Philip Terry Graham (cc by 2.0)
Old Helensburgh Station by Philip Terry Graham (cc by 2.0)
Old Helensburgh Station by Rod Smith (used with permission)
Old Helensburgh Station by Bronwyn Dennis (used with permission)
Old Helensburgh Station by Fran Tapia (cc by-nd 2.0)
Old Helensburgh Station by mjmediabox / Alamy
Old Helensburgh Station by Rod Smith (used with permission)
Old Helensburgh Station by Fran Tapia (cc by-nd 2.0)
Old Helensburgh Station by mjmediabox / Alamy
Old Helensburgh Station by Steve Weston (used with permission)
Old Helensburgh Station by Jonathan Sheldrick / Alamy
Old Helensburgh Station by Steve Weston (used with permission)
Old Helensburgh Station by Jonathan Sheldrick / Alamy
Old Helensburgh Station by null
Old Helensburgh Station by null
Old Helensburgh Station by null
Old Helensburgh Station by null
Old Helensburgh Station by null
Old Helensburgh Station by null
Old Helensburgh Station by null
Old Helensburgh Station by null
Old Helensburgh Station by null
Old Helensburgh Station by null
Old Helensburgh Station by null
Old Helensburgh Station by null
Old Helensburgh Station by null
Old Helensburgh Station by null
Old Helensburgh Station by null
Old Helensburgh Station by null
Old Helensburgh Station by null
Old Helensburgh Station by null
Old Helensburgh Station by null

Information

2 Vera St, Helensburgh NSW 2508, Australia Get directions

Information

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2 Vera St, Helensburgh NSW 2508, Australia Get directions

helensburghtunnels.org.au

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Last updated

Jan 30, 2026

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@atlasobscura
4,908 Postcards · 2,018 Cities

The 10 Best Places of 2018

"Drowned railroad tracks lead to an abandoned passageway nearly lost within a cascade of leafy greenery. Once inside, an enchanting blue glow illuminates the dark, dank tunnel. Officially called the Metropolitan Tunnel, this underground passage was built in the 1880s. Its use was short-lived, as it closed in 1915 after years of soot and smoke built up within the space and made it dangerous for the trains’ crews and passengers to pass through. One end of the tunnel became sealed shut so it could become a reservoir. The north entrance, too, became blocked from years of mucky debris building up outside. The whole tunnel was nearly hidden behind a thick veil of lush flora. Before it was drained and partially cleared in 1995, the entire passageway was full of stagnant water. But the tunnel wasn’t completely abandoned during this time. A colony of glowworms—one of the largest in all of New South Wales—moved in and made its home on the roof. The insects illuminate the stale, inky air like a constellation of blue-green stars. The tunnel still floods fairly frequently. On days where the water level is particularly high, people pass through the small waterfall that often tumbles across the entrance after heavy rains with pool floats or inflatable canoes in hand. They then paddle deep into the darkness until they reach the spots where the ceiling becomes brightest with the soft glow of the bioluminescent bugs." - ATLAS_OBSCURA

https://www.atlasobscura.com/lists/10-best-places-of-2018
mjmediabox / Alamy
Old Helensburgh Station
@atlasobscura
4,908 Postcards · 2,018 Cities

25 Places to Really Bug Out

"Drowned railroad tracks lead to an abandoned passageway nearly lost within a cascade of leafy greenery. Once inside, an enchanting blue glow illuminates the dark, dank tunnel. Officially called the Metropolitan Tunnel, this underground passage was built in the 1880s. Its use was short-lived, as it closed in 1915 after years of soot and smoke built up within the space and made it dangerous for the trains’ crews and passengers to pass through. One end of the tunnel became sealed shut so it could become a reservoir. The north entrance, too, became blocked from years of mucky debris building up outside. The whole tunnel was nearly hidden behind a thick veil of lush flora. Before it was drained and partially cleared in 1995, the entire passageway was full of stagnant water. But the tunnel wasn’t completely abandoned during this time. A colony of glowworms—one of the largest in all of New South Wales—moved in and made its home on the roof. The insects illuminate the stale, inky air like a constellation of blue-green stars. The tunnel still floods fairly frequently. On days where the water level is particularly high, people pass through the small waterfall that often tumbles across the entrance after heavy rains with pool floats or inflatable canoes in hand. They then paddle deep into the darkness until they reach the spots where the ceiling becomes brightest with the soft glow of the bioluminescent bugs." - ATLAS_OBSCURA

https://www.atlasobscura.com/lists/insect-exploration
mjmediabox / Alamy
Old Helensburgh Station

Thomas G.

Google
Great little tunnel. Be prepared as it is extremely muddy (so wear gum boots and take every step carefully) and probably around 200m in it was all water at least 500mm deep and just keeps getting deeper. The air also gets really stale. I took a breath out and it stayed in front of me like a cloud. Everything you need to see is within the first 150m into the tunnel. Please read the signs before entering, stay as quiet as possible and point your torches at the ground. Also, please try not to steal the Lilly's as they make the scenery so much more beautiful. Also it's crown land so I believe it could be a felony. We went there twice within 2 days. The first day lillys were blooming everywhere. The second day most were gone and we saw 1 woman cut off and walk away with 10 of them.

shreya Y.

Google
Its always muddy and slippery wear, good shoes or boots ,glow worms in the tunnel is pretty amazing , street parking whicj is quite and easy or upto 5 spot for car park near the tunnel. Tracks can get bit better needs bit of maintenance. Bright sunny day might affect visibilty of glow worm as roof get reflection of light but will be okay if you get bit down the tunnel. Overall Good experience must go at least once

Kenny C.

Google
Pretty cool location, plenty of glow worms to enjoy through the eyes once you’ve reached about 100 metres or so through the tunnel. You only need light to shine on the ground to see where you’re going. Light upon the glow worms and noise would harm their environment so please read the rules on the sign at the entrance of the tunnel. It is extremely wet and muddy inside the tunnel, so my shoes got absolutely wrecked and entirely sunk in the mud. Luckily I was planning to throw them out anyway as they’re an old pair of sneakers. I’d recommend gum boots for a more pleasant experience and to not worry about getting your feet and legs wet and dirty. Overall, a cool adventure that can be during the day or evening and is completely free. Plenty of parking on the streets nearby. Probably safer to go with someone than alone as it can get quite slippery in the tunnel.

Rishabh S.

Google
Great spot to be, kinda thrilling. The glow worm tunnel is quite apt a name. The place was quite Muddy and wet so pick your shoes wisely.

Gavin J.

Google
I’ve been to tunnel a few times over the years, but our last visit was a bit disappointing, there was a lot of rubbish around the street entry to the tunnel and also once inside. The ground is churned up and mostly mud from over visiting of the site abs the was atleast a dozen shoes stuck in the mud or discarded as a result of the mud

Roy J.

Google
Wonderful experience to step into a historic railway tunnel site and see the glow worms. Difficult terrain to walk over though especially in the dark. A small torch is a must if you don't want to trip and fall. Don't wear your best shoes as they will get very muddy.

Helen Di D.

Google
Came here especially for an adventure with the kids. Arrived at 6.30pm before the crowds of people flocked here. It meant good photos as you won’t get that with many people flashing their lights about. Plenty of parking available at that time. We wore old running shoes and they definitely got muddy! Nothing that a good rinse and wash in the machine won’t solve. The glow worms were spectacular. Take photos on time delay without flash. If you don’t have a tripod, have a steady hand. We walked/squelched through the mud until we hit water then continued until water was about mid thigh deep. I can recommend to stay along the wall once you hit water as the path seemed shallower than if you walked more towards the middle. It continued to get deeper but we didn’t proceed. Saw a spider on the wall inside so watch where you put your hands! Highly recommend visiting but make sure you take plastic bags for muddy shoes, water to rinse off, old towel to dry up and other shoes to pop on.

Mahalia G.

Google
Really cool spot but come prepared for the mud and the wet!! It’s not just a little bit dirty, it’s deep squelchy mud and water deep enough that your shoes will get wet all the way through. So come prepared, but definitely worth the effort