10 best bridge walks around the world | Gadling.com: "Sydney Harbour Bridge, Sydney, Australia: When it comes to the Sydney Harbour Bridge you have a few options. You can either walk across the arch-shaped structure from one end to the other, taking in views of Sydney Harbour and the Sydney Opera House, or you can climb to the top. In 2010, climbing the bridge was actually rated one of the World's Top Ten Experiences by Lonely Planet. During the climb, which takes you up more than 300 feet, you will be given protective clothing to aid against the weather and will be secured by a wire lifeline. Beginning at the eastern side of the bridge, climbers will ascend to the summit and go down on the western end."
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