The Capital City Trail circles inner Melbourne on shared paths. From Princes Bridge this route follows the Yarra to Docklands, heads north past Royal Park, then follows Merri Creek and the Yarra back through Dights Falls and Burnley to the city.
It's mostly off-road and fairly flat, with some short climbs along the creeks. The paths are shared and busy at weekends, so use your bell and keep left.
Turn-by-turn cycling navigation for iPhone & Apple Watch
