HELP! Party games ideas needed for 9 year old boys party

[PSCMUM]

can be indoor or outdoor.
I have so far thought of the following@
sports day
eating chocolate with knives and forks.
possibly pinata

ideas very welcome!!

treasure hunt.

create 6 or 8 clues - a roughly drawn sketch on each 6 or 8 bits of paper. Each clue is stuck/hidden in the location the previous clue sent them to. God...are you with me so far???

Examples, garden, under flower pots/ in holes in trees/ rolled up inside the end of the hosepipe(good one that).

For 9 year old boys would suggest....very well hidden clues You want to keep them occupied. Don't make the sketch too difficult to fathom.

Make clues far apart.

Don't send them to anything breakable....they get very excited by this game if my kids are anything to go by!!

If more than about 5 kids - would advise splitting into teams.

"Treasure" is usally hidden at the final clue location...a bag of lollipops ...or make the final clue the Freezer and they all get an icecream!!!

Hope that helps