To be quite honest, I'm not sure how common this actually is.
These guys had just won a pot. In rowing parlance, this means they had won a race. You can see them proudly holding their pots out (they are basically beer tankards, and come in a range of sizes - typically the size has nothing to do with the importance of the race). The ones you see here are pretty standard size though.
Of course, nothing could be better than having your picture taken by Sir Steven Redgrave (well obviously the real one would be better, but his statue makes a good alternative!)
Rowing blazers are a curious thing. They tend to be so bright and loud, that the only time you could possibly want to wear one is when you go and watch rowing. If it is a bright sunny day, then they tend to be rather too hot for comfort!
They tend to be the preserve of the older generation or the very rich, they cost around $300-400 a pice, which for something you only wear very occasionally is rather a lot.
This guy was dressed up watching the Marlow Regatta which just happened to be taking place on May 02nd 2005, as I was passing by.
If you come from a first world country, particularly places like Switzerland, Germany, or Canada, prepare to be rather...shocked by the local living standards here.