On my way home from the LASER Discover Day in Greenwich Park - am shattered, have walked 16,000 steps and 40 flights of stairs (thanks Fitbit!) so a well deserved early night is calling I think! Fingers crossed I don't fall asleep on the train home... 
Lots of interesting stuff though, DD finished her stargazer badge with our planetarium visit, had a chat with our CC and the county events chief bod too. Didn't see the chief guide though, who apparently was roaming around with a giant picture frame, ready for selfies!
Right, where's the gin?!