Today was my second visit to the Olympic Park.
Despite having been a fairly regular visitor to this area when it was still industrial estates, car-breakers yards and travellers sites, I can't relate what's here now in any way to what was here before. The transformation is astonishing.
There's a holiday atmosphere as you walk around, like a promenade along the seafront but without the beach and the Punch and Judy show, and not as tacky. The volunteers are everywhere - unfailingly cheerful and ready to help - and there always seem to be things going on: musicians surrounded by people dancing; a marching band going past. People ask you to take their photos.
Loads of union jacks. For once no one's ashamed of displaying their patriotism. And, without going all kumbaya about it, London's ethnic diversity is on full display here, especially with the young volunteers, and it's kind of delightful. I've never been smiled at before by so many girls in hijabs.
We'll see what happens with the Games legacy over the next few years, but for the moment - it's been great.