Close to nature

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Across
  1. 4. This is very hard structure
  2. 6. You can kayaking here
  3. 8. In this place you can sleep
  4. 9. In this place potatoes are grown
  5. 11. You can swim this on the ocean
  6. 12. You can swimming in this place
  7. 13. This is place where you born
  8. 15. Volcano can this
  9. 16. You can walk here between many trees
  10. 19. This is be on the beach
  11. 20. ticket You must have this when you can travel in the train
Down
  1. 1. In this place you can't draw water
  2. 2. This is place where you can walking near water
  3. 3. In this place you can fish
  4. 5. This is place where grow very many plants
  5. 7. This is closed and continuous tree canopy
  6. 10. You can go here on holiday and sunbathe
  7. 14. You can climb on this
  8. 17. This is a rupture in the crust of a planetary-mass object
  9. 18. When you can be alone you go here