Those nice people at the London Parks have finished re-surfacing both the North Carriage Drive (runs along Bayswater Road) and Board Walk (runs along Park Lane) in Hyde Park.
The Drive is a swanky red and black tarmac with a wider cycle lane and right-turn refuges and perfectly flush drop curbs.
The Boad Walk is super-slick black top - the cycling equivalent of wiping your arss with a Swan's neck.
Now just need TfL to sort out the Hyde Park corner phasing and my commute will be like a Magic Carpet ride!

