To Australia on Sydney harbor bridge, this bridge gives 360° view of Sydney, including the opera house. the climb is very much exciting and fun. it is indeed the worlds largest (but not longest) steel arch bridge. a number of couples have become engage some have even gotten married at the top of the Bridge. You dont need to be an athlete. Youre not climbing ladders or using ropes. All youre doing is walking up steps, most of them shallow and punctuated by ramps and horizontal catwalks. There are also plenty of stops where you take a breather and listen to your guide tell you about the Bridge. The only part of the climb where the steps get steep is at the very end, as you ascend to the summit. You can climb the Bridge at night. there is a twilight climb, which begins in daylight and ends after dark, so you get both daytime and nighttime views. (If youre lucky, you get a sunset too.)