My son David is taking part in a sponsored punt race in imageCambridge this evening, and he has banned me from going to watch. I doubt he will end up with a Cambridge blue as this is his first try at steering the long pole, along with team mates from the city’s Dune Shoes where he works at weekends.

As I understand it, Cambridge and Oxford stand at opposite ends of the punt when they steer. I went punting many times in my young and carefree days, and often ended up in the Cam with my friend Sue – and runny mascara. Our punting sessions inevitably required a drying off trip at the local imagelaundrette.

I did eventually master the skill, but like everything else, you need to keep practising to improve. The last time I tried punting was when I took the boys into Cambridge for a birthday treat and hired a punt as a surprise. We constantly coasted from one side of the bank to the other and didn’t travel more than a couple of meters up river in an hour. It caused great hilarity for the tourists who were watching.

Punting is big business in Cambridge and the cause of "Punt Wars" as rival businesses tout for trade. The touts are a real pain and I lose count of the number of times I tell them I am "a local" after being accosted by them in the city’s streets.

I hope David does well tonight as it’s for a good cause, the Teenage Cancer Trust.

He is sensibly taking some spare clothing with him…