- magnifying glass, flashlight, glow stick
- see through box with a lid
for collecting rocks , sticks, flowers, leaves

- trowel/shovel, stick, gloves (hat/sunglasses)
for digging, planting, weeding, harvesting

- beans/marbles/golfball/tennisball
for hide'n'find games, catch

- stickers, transparent tape,.... paper/crayons?

I assume the adults will be carrying the extra pants and bandaids

http://www.pbs.org/parents/sid/backyard-campout/