Welcome to Katoomba, the heart of the Blue Mountains! You're standing on the edge of a vast, ancient landscape, with the famous Three Sisters rock formation holding court over the Jamison Valley. For an unforgettable perspective, head to Echo Point lookout. If you're up for an adventure, Scenic World's railway, the steepest in the world, will plunge you into the lush rainforest below. There are walking tracks for all levels, from gentle strolls along the clifftops to more challenging hikes deep into the valley.