If you go walking down a corner of Yio Chu Kang, you will be met by four Roman legionnaires with swords in their hands. They're perched on a wall, guarding two gates, and they're old friends of mine. So is the unmoving fisherman who catches more sunshine than fish and the man in the middle of the Lower Seletar Reservoir who scoops weeds from the water as if he's sifting for noodles in a giant vat of soup. I have never spoken to any of them, yet they are not strangers. Just part of the landscape of my walks.

Do you walk? Long distance, fast or prefer an amble? Do you carry a phone or walk only in the company of your shifting shadow? Do you walk familiar streets or take a compass as my sister-in-law does as she roams the moors near her Devon home where The Hound Of The Baskervilles once howled. Is an hour once a week sufficient or do you see yourself as a disciple of journalist Paul Salopek?