Oh great - thank you! 
OK, it's dd's 6th birthday, party this weekend. Her (and my) first 'big' party - 20 children coming, local church hall hired, also a theatre company to do a 'chocolate adventure' (not quite sure what this means but hey, they're the professionals).
So this is what is in place so far: children arrive and have half an hour before the entertainment, then half an hour after. I had thought that perhaps when they arrive they could do a treasure hunt and look for chocolate coins and stuff hidden around the hall. I quite like that idea but am a bit worried that the latecomers may miss out and get teary. Also, the hunt probably won't last 30 minutes so what do I do then? So first question is: is the treasure hunt a good idea? Second question: can you think of any games they could play which would allow us to fill the time and also redistribute the booty as necessary (am thinking all treasure collected could be put in a big pile and they then have to do things to win it?)
After the entertainment stuff, they will need to eat. There is a small kitchen adjoining the hall, but the entertainer prefers (understandably) that we minimise coming in and out during the drama stuff, because it makes the children self-conscious. So I was thinking it may minimise the hassle if we made up picnic bags in advance, then they could be handed out instantly, and just put out a few big bowls of crisps and jugs of water etc, to supplement the picnic bags. (Was thinking of putting in little sandwiches, small bunch grapes, carton of juice, little cake or packet of biscuits, chocolate buttons). Third question: is the picnic bags a good idea? Have I got the food right or do fussy children prefer to choose?
Then we could bring out birthday cake - continuing the treasure theme, it's a treasure chest (yes ok, it's a kit, I'm not creating it myself). And then a treasure chest pinata for them to bash to bits.
Fourth question: will the eating, cake and pinata take up half an hour? Do I need a supplementary activity up my sleeve? And if so, what?
Finally, party bags and goodbye. I think I can manage that bit 