Summer crossword RE

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Across
  1. 3. sea bird
  2. 5. beach head
  3. 7. signals to boats
  4. 10. Sun protection
  5. 11. boats moor here
  6. 13. crustacean
  7. 14. Sun protection structure
  8. 15. undulating
Down
  1. 1. place to swim
  2. 2. planets revolve around
  3. 4. catch waves on
  4. 5. lifesaver activity
  5. 6. dry with
  6. 8. frozen dessert
  7. 9. sea
  8. 12. beach game
  9. 16. season