Skull Island
From MIwiki
Skull Island is a small island off the coast of Blood Island. Surrounded by an endless ocean mist it is nefariously difficult to reach. The ghostly ferryman The Lost Welshman continues to row between the islands after the light of the Blood Island lighthouse was smashed. The island is the home of the smuggler king Andre. Guybrush must acquire the diamond for the Goodsoup family-ring from him in order to lift the curse off of Elaine.
Though Skull Island is thought to look like a skull, it is revealed to the player that the island actually has the appearance of a duck. Guybrush even comments: "It should be called Duck Island". The Welshman insists that one must "squint and turn [his] head a bit to see the skull". Guybrush continues to point out that if one actually does that "it looks like a bunny". This is a reference to the famous rabbit-duck illusion, a kind of ambiguous drawing that causes the brain to be uncertain if the drawing illustrates a rabbit or a duck.
