It is exactly a year since I first puffed my way around my local park on my first C25K run!
I "celebrated", if that's the right word, with a long run on what I am calling my "Golden Triangle" route - up the Limehouse Cut to Three Mills, along the River Lea, then west along the Hertford Canal, and down the Regent's Canal to Limehouse Marina. With a final detour to Canary Wharf, that made 12.68 km in all.
I hadn't been out for over a week, but even so I was finding it more of a slog than usual - my breathing was atrocious and my muscles ached. Still, it was bearable when I thought of where I'd been this time last year!