It's by the same people that run Classic Bike Trackdays and the big Cadwell Weekend every summer.
A 2-day trackday along the usual lines (pre-95 bikes, no idiots

I'll be there all weekend manning the Diff'rent Strokers stand in the Classic Bike Show, where we'll have at least 1 special KR on display (not mine).
Details of what's on and how to book the trackday or discounted spectator tickets can be found HERE.