Not only is it the Practice Day-Team Trial Event this Sunday (12th August) it is also the peak of the Perseid Meteor Shower. The weather this weekend looks like it might be ideal for trialling but it could be too cloudy for meteor spotting. So, it might be worth having a look on Friday and/or Saturday nights if you are putting the cat out/on the late shift/borrowing lead from the church roof.
If you are interested there's a map and a bit of bumf if you click on the icon below.
Do forget to enter for Practice Day - much lower chance of getting arrested than lurking about at night.