5.2km: Centennial Grove Grotto “Canyon” is a hidden gem for bushwalkers in Blackheath, Blue Mountains, a magical slot canyon tucked into the curves of Centennial Glen, known for its dramatic cliffs, lush waterfall, and enchanting pools. Bushwalking through Centennial Glen, the track winds down amongst towering sandstones and waterfalls, with sheer drops to navigate and a signature sense of adventure around every corner. The walk itself forms part of the Porters Pass and Centennial Glen loop, which is moderately easy but can be rugged and damp, demanding steady shoes and respect for the natural environment—especially near the steep edges and canyon walls. Grotto Waterfall and Slot Canyon At the heart of this trail lies the Grotto: a perfectly formed slot canyon where water spills over a gentle waterfall into sparkling pools below. To reach the Grotto, bushwalkers navigate rock ledges—sometimes slippery or a few feet above water—or wade through the creek, adding a fun splash of challenge and exploration. When sunlight pours through the narrow gaps, the canyon glows and ferns flourish, making it appear straight out of Australian folklore or fairy tale. Centennial Grove Grotto “Canyon” delivers one of the Blue Mountains’ most memorable bushwalk. Distance: 5.2km Elevation: 281m Difficulty: Moderate 2 to 3 hours depending on fitness, stops, and navigation. More info: https://www.walkmyworld.com/posts/porters-pass-blackheath Trip Intention Form: https://bookings.nationalparks.nsw.gov.au/public/npws/trips/intention Think before you TREK: https://www.nationalparks.nsw.gov.au/safety/bushwalking-safety/think-before-you-trek
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