When I set off at 8.30am under the most brilliant sky I'd seen for months, it seemed as if the whole neighbourhood was about to burst into Spring
I walk over the heath, spot the huddle of giant publicity balloons in fron of the Greenwich Park Gates, but I enter the park by a side entrance, some way to the left of the Ranger's House.
The 'elite' runners have set off, but I like to see the charity-driven enthusiasts getting into bizarre outfits.
Including some that look decidedly uncomfortable for a 26 mile run.
So much of the area this year is cordonned off for the use of runners only that I need to take a detour if I'm watch the start from near the park gates. I walk all the way down to the Observatory. Overhead, the drone of helicopters, and I recall my husbands words to me just before I left home: 'Security is 40% up on last year'. Is that the reason why there seem to be fewer supporters in the park?
I have to go as far as the statue of General Wolfe at the end of the avenue, and I begin to regret not having breakfast.
So the 'Honest Sausage' van is a welcome sight. Remembering last year's queues, I commiserate with the proprietor, and he says it's something to do with the route changes.
Good news for me, though. I hear an announcer telling the runners to deposit their gear in the vans and gather at the start lines. I have plenty of time to sit down and rest before veering off to a side gate to watch the runners on the heath.
It's a family occasion, and the smallest supporters get a good view. It takes half an hour for the runners to pass by, all bearing logos of charities. With 33,000 runners that's a lot of money raised and it's heart-warming to see so many willing to sponsor the causes.
A long nervous wait and no doubt plenty of water intake means some runners head off for an early pit stop. Seems to be good for the gorse bushes.