Puzzle 67

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Across
  1. 4. Boat overturns
  2. 6. Sea navigators
  3. 8. Heavy to moor ships
  4. 10. Tower with light
Down
  1. 1. Land by the sea
  2. 2. Travel by boat
  3. 3. Ability to float
  4. 5. Harbor for ships
  5. 7. Related to ships
  6. 9. Activity of catching fish