Advanced Ocean-themed Crossword Puzzle
 
Listed Items
- 1.  The regular changes in the level of the sea
- 2.  Sea creature with five arms
- 3.  Shell with 5-point star pattern
- 4.  A large area of water bordered by land
- 4.  A large fish with a pointed nose and sharp teeth
- 5.  A sea creature with five pairs of legs and two large claws
- 6.  Breathes air through a blowhole on the top of its head
- 7.  A small fish that puffs itself up to look bigger