Is it freesyle walking? Is is a sport?
They call it fun.
It is also known as "Parkour" and originated in France.
See the "Russian Climbing" music video, a well done video choreographed and edited to some upbeat music. WILD!
Empowering Cyclists, Skaters, and Pedestrians - In Santa Monica and the Westside
Using Environmentally Friendly Vehicles - Using Earth Friendly Renewable Fuels