Midge Bites.

" 'Mosi-Guard' 10 Hour Protection Natural Insect Repellent." Doesn't Work.
The day after a long run along the River Lee. 17 bites and still counting. But it was a beautiful run - halted by lightning; see video here:
https://www.youtube.com/watch?v=BD6YNB8g9i8&hd=1
Lightning over the Olympic Stadium as filmed from Hackney Marshes starting at 3:40 onward.