It’s not every day you get to scale the world’s largest steel arch bridge. Totalling 1,149m (3,769ft) high, it’s a long way down from the top of the Sydney Harbour Bridge. But the 360-degree views of the sparkling harbour, city skyline and Blue Mountains are well worth the goosebumps. While you ascend to the summit in your harness, you’ll hear fascinating tales of the bridge and harbour’s rich history.