Katoomba

Where it sits. Katoomba is the principal town of the Blue Mountains, 102 kilometres west of central Sydney and 39 kilometres south-east of Lithgow, perched at 1,017 metres on a sandstone plateau. The 2021 census recorded 8,268 residents. The town's southern edge simply stops: two kilometres from the main street the ground falls several hundred metres into the Jamison Valley, and the escarpment runs east and west for as far as can be seen. The Blue Mountains are not a range in the conventional sense but a deeply dissected plateau — the valleys were cut down into it rather than the peaks pushed up — which is why the horizon from Echo Point is a flat line broken by cliffs rather than a row of summits.

Why the mountains are blue. The haze is real and it is chemical. Eucalypt forest releases volatile terpene compounds into the air; fine droplets scatter short-wavelength light more efficiently than long, and the accumulated effect over a valley 20 kilometres wide is a distinct blue cast that deepens with distance. The Gundungurra and Darug peoples occupied this country long before Blaxland, Lawson and Wentworth crossed the range in 1813, and Katoomba's Gully, a Gundungurra camp cleared in 1957 for a motor-racing circuit, was declared an Aboriginal Place in 2012.

The Three Sisters and the Scenic Railway. The Three Sisters, three weathered sandstone pinnacles standing off the escarpment below Echo Point, are the region's signature. The Giant Stairway descends beside them — around 900 steel and stone steps down to the valley floor, a knee-punishing but spectacular route that connects to the Federal Pass. The Scenic Railway at Scenic World, on the town's south-western edge, was built to haul coal and oil shale out of the Jamison Valley in the 1880s and converted to carrying passengers; it is the steepest passenger railway in the world, with a maximum incline of 52 degrees, and the carriages now recline to a choice of angles. Scenic World also runs a cable car and a glass-floored skyway across the gorge above Katoomba Falls, which drops in stages down the Kedumba River into the valley.

On screen. The escarpment has drawn film crews since the silent era — The Blue Mountains Mystery was partly shot around the town centre in 1921. In recent years the National Geographic series Limitless with Chris Hemsworth filmed at Scenic World Katoomba, using the cliff edge and the aerial infrastructure for its heights sequence, and the British-Australian drama Ten Pound Poms shot its first season across the Blue Mountains and the historic Central West village of Carcoar. The valley's reliable morning cloud inversions — when the Jamison fills with white and only the Three Sisters and Mount Solitary stand clear — are the reason productions and photographers book early calls here, and they occur most often on still autumn and winter mornings.

What you actually see today. Katoomba Street runs downhill from the railway station through a run of Art Deco and Federation shopfronts, including the Paragon Café, a 1916 confectionery and tearoom whose chrome-and-mirror interior is heritage-listed. The Carrington Hotel, opened in 1882 at the top of the street, is the oldest continuously operating guesthouse in the mountains and still the grandest building in town. Novelist Eleanor Dark lived here from 1923 until her death in 1985; her house now operates as Varuna, a national writers' residency. Walking tracks fan out in every direction, from the level 1.5-kilometre Prince Henry Cliff Walk between Echo Point and Scenic World to full-day descents to the Ruined Castle and Mount Solitary.

Getting there and timing. Trains run from Sydney's Central Station to Katoomba roughly hourly on the Blue Mountains line, taking about two hours, and the town is walkable from the station — one of the few Australian mountain destinations that genuinely does not need a car. By road, the Great Western Highway takes ninety minutes without traffic. Autumn gives the clearest air and the exotic deciduous colour of nearby Mount Wilson; spring runs the waterfalls hardest. Winter is cold, wet and frequently below five degrees, with occasional snow, and the town leans into it with the Yulefest tradition of northern-style Christmas dinners in June and July. Cliff-edge weather changes fast — carry a layer even on a warm morning.