A VISIT TO ANTARCTICA
'(<a href="http://www.j-archive.com/media/2010-05-10_J_27.wmv">Sarah of the Clue Crew delivers the clue from Antarctica--with penguins.</a>)  Penguins usually walk upright, but if in a hurry, flop on their bellies & push off with their flippers & feet, traveling in a way named for this Native American sled'
a toboggan