Sometimes the best adventures happen when plans go awry. This hike in the Blue Mountains, west of Sydney, was our Plan B after track closures on the Six Foot Track due to aerial pest control forced us to rethink our original route. Lesson learned—always check for track closures with National Parks before setting off!
A Change of Plans
Our group of ten met at Katoomba Train Station, where those who drove picked up the train travelers. With a car shuffle organized—two cars at the start, two at the finish—we thought we were all set. But when we arrived at our starting point, a big track closure sign dashed our hopes. This is a timely reminder on how to plan a hike.
After backtracking to Cahill’s Lookout, we took a break, soaked in the views, and discussed alternatives. Our leader suggested a scenic circuit walk in Blackheath featuring lookouts, waterfalls, and a canyon. Since we had done more driving than hiking at this point, we were all keen to get moving!
Blackheath Circuit Hike Via Centennial Glen And Porters Pass Hike Details
- When: 2 April 2025
- Where: Blackheath, Blue Mountains National Park,
- Weather: A sunny amd mild autumn day. Low of 53.6°F (12°C) and a high of 73.4°F (23°C)
- Departure: Trailhead off Gordon Ave, Blackheath
- Length: 5.28 miles, 8.5 km
- Elevation gain: 1276 ft, 389 m
- Duration: 3 hours 26 minutes moving time
The Start—Finally
Leaving the cars in Bellevue Ave, we took a short road walk to the trailhead off Gordon Ave.
Our hike began on the Centennial Glen Track, immediately descending towards Centennial Glen Creek. Heavy rain earlier in the week had left the trail muddy and slippery underfoot, requiring careful footing from the start.
Centennial Falls
Following the base of an impressive sandstone cliff, we soon spotted rock climbers tackling the sheer walls. After 1.2 km (0.75 miles), we reached Centennial Falls, where water cascaded down from above, glistening in the sunlight against a blue sky—a stunning sight.
Lunch Under an Overhang
Continuing along the base of the sandstone cliffs, we often found ourselves walking beneath massive rock overhangs. We picked a shady spot for lunch, enjoying the peaceful sounds of the bush before pushing on.
After about 3 km (1.9 miles), we reached Centennial Glen Carpark, marking a transition to the next section of our hike.
Side Trip to Slippery Dip Falls
Before joining Colliers Causeway, we took a short detour into Centennial Glen, a dark and cool cavern, then continued to Slippery Dip Falls.
Here, water tumbles dramatically through a narrow slot canyon, and the trail follows the falls closely. Fortunately, a handrail helps hikers navigate the steep and slick stone steps. It felt like we were walking through the waterfall itself!
At the base, we had to cross wet, moss-covered rocks and fallen tree trunks—a reminder that wet wood is incredibly slippery. Thankfully, we all made it through without a fall!
Colliers Causeway and Porters Pass
Back on Colliers Causeway, the towering sandstone cliffs now rose on our right, while the Kanimbla Valley opened up to our left. Thanks to the recent rain, pseudo-waterfalls dripped down over the rock face from above, adding to the beauty of the scene.
After 600 m (0.4 miles), we reached the lowest point of the hike. From here, the track gradually ascended, with some undulating sections along the way.
At Porters Pass, we entered a lush green gully, crossed another creek, and began our final climb to Colliers Lookout. From there, we followed the track to Ada Rd, where a 1.5 km (0.9 mile) road walk took us back to our cars.
Terrain: What to Expect
This circuit offers a mix of terrains, keeping things interesting:
- Muddy sections: After rain, expect slick and slippery patches, particularly near creek crossings.
- Rock overhangs and ledges: Much of the trail hugs sandstone cliffs, with dramatic rock formations providing shelter along the way.
- Steep descents & ascents: The hike has a few steep sections, particularly near Slippery Dip Falls and the climb out of Porters Pass.
- Creek crossings: Expect wet and mossy rocks, which can be slippery—take your hiking poles if you use them.
Flora and Fauna
The Blue Mountains are famous for their diverse ecosystems, You can possibly see:
Flora
- Towering eucalyptus trees line the ridges, filling the air with their distinctive scent.
- Ferns and mosses thrive in the cool, shaded gullies, adding to the lush, almost prehistoric feel of sections like Centennial Glen.
- Wildflowers (depending on the season) add pops of color along the track—keep an eye out for waratahs and banksias!
Fauna
- Lyrebirds: These amazing creatures can mimick anything.
- Cockatoos and parrots: Their loud squawks echoe through the valley.
- Lace monitors (goannas): These large lizards are sometimes seen basking on the track—just give them space.
My Final Thoughts
This unexpected adventure turned out to be an absolute cracker of a hike! The towering sandstone cliffs, hidden waterfalls, and lush gullies made for an unforgettable experience.
However, the day was a good reminder—always check for track closures before setting off!
Would I recommend this hike? Absolutely. I probably would have reduced the last road walk by staying on track a little longer and exiting closer to the cars. Despite this it has everything you want in a Blue Mountains trail—scenery, variety, and a touch of adventure.
Have you ever had to change your plans last minute? You can share your experience or ask a question here.