FIRST CRYSTAL: Fairy Glade. This is on your path after the big, oily drop.
SECOND CRYSTAL: Sanctuary of Water and Ice. Swim to the underwater cave in the
very first pond.
THIRD CRYSTAL: Whale Bay. After you follow the whale to the end, instead of
going into the ship, go to a cavern over to the left. It´s at the top.
FOURTH CRYSTAL: Fairy Glade. When you take the alternate entrance, it´s to the
left of the exit.
FIFTH CRYSTAL: Precipice. When you find the exit, keep on going to the left.
Go up the ramp and get the crystal.
SIXTH CRYSTAL: Iron Mountain. Before you float down to the balloon, go the
back left of the platform.