Morning yoga, then two hours climbing -- which was actually a certain amount of climbing and a lot of faffing about chatting to people.

Still had lots of spare energy to burn, so I decided to see if I could walk home from the climbing wall, as I haven't done a really long walk in ages.

(This may seem less masochistic if I mention that I've done segments of the route before and IMHO it's one of the best walks in London.)

It took two and a half hours. Now I'm properly tired.