Water-Skiing Board Towed Behind a Motorboat
Puzzle 8 of Making Sushi Pack
Question is: Water-Skiing Board Towed Behind a Motorboat
and the answer is: AQUAPLANE
Word Meaning:
AQUAPLANE — (originally US, water sports) A board on which a person stands to ride for leisure which is pulled on a water surface by a motorboat.
Definitions from Wiktionary.