Near Sydney, the Blue Mountains National Park features spectacular gorges which are the result of erosion caused by the Grose River and Glenbrook Creek through 600m of colorful sandstones, shales and coal measures. The park is covered with tall eucalyptus forests with many waterfalls and shady glens. Lookouts at Govettts Leap (Blackheath) and Echo Point (Katoomba) offer panoramic views. The park has numerous hikes within its boundaries. Commuter trains run from Sydney into the heart of BMNP and to the main town of Katoomba.
Overall, Blue Mountains National Park is the 2nd most popular hiking trail of all 16 hikes in Australia.