The Great Sea Turtle are inhabitants of Sandman's Island.
Sea Turtles are seem to be green color with a brown or a dark green shell. They also seem to come in different sizes.
The Sea Turtles are loyal; and they also care about the well being of others as shown when they wanted Sandy to help the children stop being afraid of the dark.
The Sea Turtles told Sandy about the children's fear of the dark as a way to help him find his answer to The Man in the Moon's question.
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related to Sea Turtle.
- Some of the turtles in Island of the Sleepy Sand belonged to children and knew of their fear of the dark.