you have to play bear hugs and in the 1 of the clouds there is the green gem the game is in the build a bear workshop in build a bear ville.
You have to get a home run on the baseball game
go to the jungle in bearville, i think
It is located at the library.
It is in the sporplex and you have to play the baseball thing
at the top of the tree in the heart of the forest.
Bobbing For Apples, In The Upper Left Corner.
The first gem is in the game dive beary deep
You have to play Bear-2-Bear racing and win to get the second gem.
The first gem for the Jungle Ruins quest can be found by playing the Dive Beary Deep game.
The first gem is located at Paw Park in the Dive Beary Deep game.
It in dive beary deep. Try a few times and the gem will be in the water and after the game it will say congrats you foud the gem!
the second gem is hidden in the cave. hope this helps! also it is green and on top of the big rock there in the middle :)