It is to do with birds nesting between Feb & Sept, along with on going army training. Thames have had their permit rescinded for the same day on another piece of MOD land. The excuse last time was they didn't have time to process the permit, this time they had to be a bit different as Thames applied last November! We had 4 events booked this year and 2 have been cancelled so far before the event. We have been invited to apply again in August for the 2 we have booked for late in the year.