Fun things to do next to four kids?

i'm watching my neighbors kids for a while next Saturday. i would like to do something fun with them and don't know what to do. they are 5 and 6. any concept!?! thx!
board games
video games
play scrabble
scavenger hunt..
scratch that
NO video games
uhhh
playyy
something
red light green light?
lol
simon say
something kids would tthink is fun
lol
Here are some concept that incorporate "fun" math. Their parents will appreciate it!

http://suchasmartmom.com/2009/06/11/numbers-that-add-up-to-summer-math-fun-for-elementary-school-children/
Answers:    If possible, let them play in the hose if its nice out.
Kids love playing in sprinklers on hot days.
The side step chalk is a great idea too! My niece
absolutely loves chalk, she uses it for at least an hour.
Get some sidewalk chalk and let them go crazy!
Make sure to sweep your driveway clean back so that no sticks or acorns get in the way of their creations.

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