I never realised walking could be so interesting!
Check this out: Nordic walking... I have never heard of it in Singapore but it's so popular in Germany, it has become a sport that all ages participate in even has a club in TUM!
Walking in this sense involves 2 modified ski poles and is really an improvision from ski-ing on hard ground instead of snow.
And each pair of poles cost 100 over dollars, that goes without the shoes and other gear that might be involved.
I never realised walking could be so expensive too....