50 metres
Whilst urban walking isn't everyone's cup of tea it can give a different look to a city. The High Line is a 1.1 mile long urban park built on an old elevated rail Road. Run by volunteers the park is a green oasis and is well tended. It's only problem is that it is not long enough!
Running from 30th street to Gansevoort Street (it's like I'm a local!) the park cuts a path between and at times through buildings. It runs parallel with the Hudson River a block or two over, and forms part of an urban renewal turning the old warehouses and tenements into a trendy area. A small park (run by volunteers) has helped form a renewal of an area, a quite inspiring idea!