Sea crossword #2 (level 4)

Across

4. 4 Land surrounded by water. (6 letters)
5. 5 Very playful sea animal. (7 letters)
9. 9 It floats and sails. (4 letters)
10. 10 Tower that guides ships at night. (10 letters)
13. 13 Sandy place by the sea. (5 letters)
14. 14 Small pink shellfish. (6 letters)
15. 15 Half girl, half fish. (7 letters)
16. 16 Water rolling onto the beach. (4 letters)

Down

1. 1 It swims and breathes underwater. (4 letters)
2. 2 Where boats stay safe. (6 letters)
3. 3 The biggest animal in the world. (5 letters)
6. 6 It has eight arms. (7 letters)
7. 7 Big fish with sharp teeth. (5 letters)
8. 8 Plant that grows in the sea. (7 letters)
11. 11 It holds the boat in place. (6 letters)
12. 12 The sea goes up and down every day. (4 letters)