Written by Thu Phuong Pham
Wednesday 23 April 2025

Nestled in the breathtaking wilderness of the Blue Mountains, the Glow Worm Tunnel offers one of the most enchanting and unique experiences in Australia. More than just a tunnel, it’s a journey into nature’s wonders, where you can step back in time, marvel at glowing creatures, and walk through the cool, moss-covered remnants of an old railway line.
The Journey Is Half the Adventure
The journey to the Glow Worm Tunnel is part of the adventure itself. You have two main options: you can choose to drive nearly two hours on a rough dirt road that shortens the trip to the tunnel. While the road can be bumpy, it’s a more direct route. Alternatively, you can take a less rugged road and enjoy a 6km walk to the tunnel. If you're feeling adventurous, you can also bring a bike and cycle the 6km stretch, but be prepared for tough terrain, rocky paths, and challenging inclines. The journey is demanding, whether you walk or bike, but it’s definitely worth the effort once you reach your destination.
The magical inside the tunnel
Upon arrival, you’ll be rewarded with the magical glow of the glow worms. These tiny creatures light up the tunnel, creating a mesmerizing, almost otherworldly effect. As you walk through, you’ll see thousands of tiny blue-green lights dotting the walls and ceiling, illuminating the space like a starry sky — an unforgettable sight that feels like something out of a fantasy novel. The glow worms, actually the larvae of a species of fungus gnat, use their bioluminescence to attract prey, but for visitors, it’s pure magic. The best time to experience the glow worms is during the evening or night, as they shine brightest in the dark.
Tips for Visiting the Glow Worm Tunnel
- Best Time to Visit: Evening or night for the best glow worm experience, but the walk to the tunnel is also lovely in the daytime.
- Let Someone Know Before You Go: The route can be tough and isolated, so it’s important to tell someone your plans before heading out — safety first!
- Wear Comfortable Shoes: The trail can be muddy, and there are some rocky sections, so sturdy, comfortable footwear is a must.
- Bring a Torch: The tunnel is completely dark, so a torch or headlamp is essential. It’s also great for exploring the tunnel’s historical features.
- Respect the Wildlife: Glow worms are delicate, so avoid using flash photography, which can disturb them.