SEA OF TEARS: Not really "hidden* but there's an entrance to a Secret Caterpillar Garden while underground in the mouse's house.
WONDERLAND FOREST: Place gray boulders on light gray pebbles. This is on the screen once you're on the hidden path to the Dutches's House.
Hint: the yarn ball moves the trees out of your way...
ROAD TO MAD HATTER: Put pumpkins on the beige shells in the Western garden to open a Secret Caterpillar Garden.
Croquet Grounds
There's a door up/over to the left of the location's main entrance. It appears upon pushing the red potion/paint bottle to the top of the LEFT path; leading to another Caterpillar Garden with goodie chests🙂
HINT: pushing the bottle's main purpose is to reveal a lever for getting across the water.
QUEEN OF HEARTS COURT:
- Put barrel next to King's food table.
- Put beehive on honey machine.
- Clean footprints w/ sponge.
- Place black checkers on black squares (room 2) Gives coins, but more importantly, reveals a new door to go rescue the kids.
- Place records on players according to the flower colors next to each. (These are in the reward room, opens after the children are freed.)