Across
- 2. A piece of land surrounded by water.
- 4. A vast salty body of water.
- 6. A creature with fins that swims.
- 7. A moving swell in the ocean.
- 8. A vessel used to travel on water.
- 9. A fierce predator of the seas.
- 11. Where the sand meets the sea.
- 12. A large body of water surrounded by land.
Down
- 1. Water that falls from the sky.
- 3. A playful and intelligent marine mammal.
- 5. The rise and fall of sea levels.
- 7. The largest mammal in the water.
- 9. A hard covering found on the shore.
- 10. A flowing stream of fresh water.