From the World Heritage inscription for the Greater Blue Mountains Area:
The Greater Blue Mountains Area (GBMA) is a deeply incised sandstone tableland that encompasses 1.03 million hectares of eucalypt-dominated landscape just inland from Sydney, Australia’s largest city, in south-eastern Australia. Spread across eight adjacent conservation reserves, it constitutes one of the largest and most intact tracts of protected bushland in Australia. It also supports an exceptional representation of the taxonomic, physiognomic and ecological diversity that eucalypts have developed: an outstanding illustration of the evolution of plant life. A number of rare and endemic taxa, including relict flora such as the Wollemi pine, also occur here. Ongoing research continues to reveal the rich scientific value of the area as more species are discovered.
The geology and geomorphology of the property, which includes 300-metre cliffs, slot canyons, and waterfalls, provides the physical conditions and visual backdrop to support these outstanding biological values. The property includes large areas of accessible wilderness in close proximity to 4.5 million people. Its exceptional biodiversity values are complemented by numerous others, including indigenous and post-European-settlement cultural values, geodiversity, water production, wilderness, recreation and natural beauty.
Katoomba and the Blue Mountains National Park is about an hour outside of Sydney. The amazing thing about Katoomba is that the town is located right on the rim of a canyon, which is one or the largest canyons in the world. You can literally walk through town and look out over the edge of the canyon.
The most prominent feature in Katoomba is the Three Sisters (shown above). In addition to the Three Sisters, you can take cable car rides to the bottom of the canyon where are the walking trails, several waterfalls, as well as hiking trails near the canyon rim.
The Blue Mountains is a must see for anyone visiting Sydney. You can easily take a train or drive to Katoomba from Sydney for a day trip.
View the complete list of UNESCO World Heritage Sites in Australia.
View the list of all of the UNESCO World Heritage sites I have visited on my travels.