Night RIDING as it's known not sure what RIDDING is.
I've done the last two of these events and commute all year so I spend a lot of time cycling in the dark anyway. It's a really good event and cause too so that's why I'm doing it. They don't hold group night rides for nothing. It's a very interesting and unique way to spend a night seeing night become day as you ride. Come along if you like. Gez