If you like a little thrill, visit The Blue Mountains and the Katoomba Scenic World. The world’s steepest railway is west of Sydney, in New South Wales. The Three Sisters is one of those landmarks that tourists from Australia and overseas line up for.  We started at Echo Point and The Three Sisters, and took the Giant Stairway – 800 plus steps down – down into the valley. This is a Grade 4 walk.  Then we walked Federal Pass to Katoomba Falls and Scenic World.  Now, here’s the thing to remember: this railway was built in the 1880s for coal,