Yarra River, Melbourne, Australia

Melbourne is situated on a coastal bay in Australia, but the city’s real waterfront is at the Yarra River. The walking is picturesque and the riverfront attractions are varied and dense. In just a few kilometers of strolling, visitors can see the stunning Royal Botanic Gardens Melbourne (Birdwood Ave.; 61-3/9252-2300; rbg.vic.gov.au), Melbourne Cricket Ground (Brunton Ave., East Melbourne; mcg.org.au)—one of the most important in the world—and the Melbourne Aquarium (Corner of Flinders and King sts.; 61-3/9923-5999; melbourneaquarium.com.au), where the truly adventurous can turn a walk into a swim by opting to dive with the sharks.