Mermaids Cave

Overview

Mermaids Cave (also known historically as Mermaid's Glen) is a small, atmospheric sandstone overhang tucked in a lush gully near Blackheath. The short walk drops you through a cleft between tall cliffs into a cool, mossy amphitheatre where a seasonal waterfall spills over the cave after rain. It’s a moody, photogenic spot and even has a pop-culture footnote as a filming location for Mad Max Beyond Thunderdome.

What You’ll See

Expect towering sandstone walls, ferny gullies and a broad rock overhang rather than a deep cavern. After wet weather, a curtain of water flows over the lip—you can often get behind it for a different angle. In dry spells the falls reduce to a trickle, so time your visit if the waterfall is the goal.

Getting There & Parking

Access is via a short walking trail off Megalong Road, just outside Blackheath. Park on the open rocky pull-in on the inside of the hairpin bend, then carefully cross the road to the signposted path. Parking is limited and informal—think small roadside layby rather than a formal lot—so turning up early or off-peak helps.

Trail & Terrain

This is a quick outing but not a flat stroll. Stone steps lead steeply down through a narrow canyon-like cleft. It’s straightforward in dry conditions, but after rain the ground can be damp and muddy, and the rocks slick. The climb back out is short but steep—save a little puff for the return.

Best Time to Visit

• After rain for the waterfall and maximum atmosphere
• Early or on weekdays to avoid parking hassles at the roadside pullout
• Cool, misty conditions make the glen especially photogenic

Wildlife & Safety Notes

The shady, moist gully supports lush vegetation and cool air. Visitors have reported encountering snakes and even scorpions here—watch your footing, especially around rocks and leaf litter. The steps and ledges can be slippery when wet; sturdy footwear is smart.

Photography Tips

The approach staircase and narrow cleft make great leading lines into the scene. After rain, try a slower shutter for silky water, and explore behind the falls for a backlit curtain effect. The cave and gully are shaded, so bring fast glass or be ready for longer exposures.

Make a Half-Day of It

If you want to extend the outing, pair Mermaids Cave with nearby Coachwood Glen along Megalong Road for more time among cool-temperate rainforest vibes.

Essentials

There are no facilities here—no toilets, water, or food—so come self-sufficient. Some guides mention bringing dogs, but always check the current rules before you do.