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The Helensburgh Glow Worm tunnel was opened on 1 January 1889 and formed part of the town's first railway station. As of 9 February 2020, the tunnel was closed for an indefinite period due to excessive flooding and to help the glow worm population recover.
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It is owned by Crown Lands and managed by a community group Helensburgh Landcare who, in early 2019, restricted access to the tunnel for the conservation of the glow worm colony. The Helensburgh Glow Worm tunnel is a disused rail tunnel in Helensburgh, New South Wales that has become a popular tourist attraction due to its haunted history, and most notably, its glow worm population.
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