Premise: The Newnes railway line (also called Wolgan Valley Railway) is a closed and dismantled railway line in New South Wales, Australia. The line ran for 32 mi from the Main Western line to the township of Newnes. Along the way, it passed through a tunnel now known as the Glowworm Tunnel, because it is famous for its glow-worms. The tunnel is now contained within the Wollemi National Park.
Hypothesis: The Wolgan Valley Railway is same as Newnes railway line which was 32 mi long and popular for a glowing tunnel because of glowing worms.