1        2          
             3     4    
  5                  
                  
6                    
         7           
8         9             
                  
      10           11     
12          13            
                  
  14           15         
          16          
        17         18     
19                    
            20        
21                    

Across

1. a plant growing underwater
5. wood and rubbish from sea (three words)
6. water moving in one direction
8. coral ______
9. a lot of small stones on a beach or by a river
12. strong wind and rain
13. pieces of wood which float on water or are washed onto the beacg
14. worlds biggest ocean
15. a large boat with sails
17. a large white bird dound near the sea
19. opposite of deep
20. bigger than a sea
21. a fast boat

Down

1. the land along the edge of the sea
2. sandy hills
3. smooth, round stones
4. a place on the coast where boats find shelter
6. a large ship which carries goods (two words)
7. a large passenger ship
10. white water made by strong waves
11. a town with a harbour, where ships load and unload
13. a place for loading and unloading goods
14. a person who attacks and robs ships
16. a small rubber boat
18. smaller than an ocean