Underwater Mysteries

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Across
  1. 4. where you finally arrive
  2. 5. huge terrifying creature
  3. 8. below the surface of the water
  4. 10. think of, then make a completely new thing that no-one has ever seen before
Down
  1. 1. low land between hills normally with a river
  2. 2. something you travel in across the sea
  3. 3. weather condition with lots of wind and rain
  4. 6. name for a very big sea
  5. 7. a ship at the bottom of the sea
  6. 9. something you find, normally quite important