Killen Falls: The Enchanting Cave & Waterfall of the Northern Rivers

If you're exploring the Byron Bay hinterland, you've likely heard whispers of a waterfall you can walk behind. Killen Falls, located in Tintenbar, is a rare remnant of the "Big Scrub" rainforest that once covered the Northern Rivers.

What makes Killen Falls a "must-see" isn't just the 10-metre drop of Emigrant Creek; it's the massive, overhanging limestone cave that wraps around the swimming hole. It's a prehistoric sanctuary that feels worlds away from the busy surf breaks of Ballina and Lennox Head. For more stunning NSW waterfalls, explore Dangar Falls on the Waterfall Way or discover Crystal Shower Falls in Dorrigo.

Quick Stats

• Distance: 1km return

• Time: 45 minutes (plus plenty of time for a cave swim)

• Grade: Easy to Medium (The track to the top lookout is flat; the track to the base is a rocky scramble)

• Best For: Wild swimming, cave photography, and rainforest vibes.

How to Get to Killen Falls (The Parking Reality)

Killen Falls is located on Killen Falls Drive, just a 20-minute drive from Byron Bay or 15 minutes from Ballina.

1. Strict Parking: There is a very small car park at the trailhead. Parking on the grass verge or the road is strictly prohibited and frequently patrolled by rangers.

2. The Strategy: To guarantee a spot, you must arrive before 9:00 AM or visit on a weekday. If the car park is full, do not park illegally—come back later in the afternoon.

3. The Trail: There are two options: a 150m walk to the top lookout (accessible) and the 500m walk down to the base of the falls.

The Swimming Experience: Walking Behind the Falls

The real magic happens at the base. The track down is often muddy and involves stepping over large tree roots, but the destination is worth every step.

• The Cave: The massive overhang allows you to walk entirely behind the curtain of water without getting wet (unless you want to!). The cave floor is rocky, so watch your step.

• The Swim: The pool is wide and deep, perfect for a refreshing plunge. The water is usually a tea-tree stained amber color, typical of the Northern Rivers region.

• The Wildlife: Look for turtles sunning themselves on the rocks and the vibrant green rainforest frogs that call the damp cave walls home.