Blue mountains can be seen westward from any high location in the City. Stretching across from Penrith towards inner NSW covering an area of 11,400 sq. km, this is one of the most popular locations to visit if you are visiting Sydney for a couple of days. Katoomba the main city in the Blue Mountains is some 80 km from Sydney. Take M4 and you can get there in less than an hour. Once past Hawkesbury River in Penrith you will start climbing up the mountains with beautiful towns of Springfield, Hazelbrook, Leura, Wentworth Falls Katoomba and Black Health.