Pirates Den:

Go to the Great Barrier Reef. Then go on the Boat Deck. When you see the whale, click on him and you’ll be able to go to the Pirates Den. Just a little notice, the whale is not always there.

White Room:

Go to the Museum in Wiglington Town. Then proceed into the Wax Museum and click on the left cabinet shown below.

Black Room:

Go to the ship in the Great Barrier Reef. Click near the locked door which is shown below.