What are Ben and Diana doing?

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Across
  1. 2. Public garden
  2. 8. home of Dame Edna
  3. 11. Train stop
  4. 12. Female
  5. 13. star sign
  6. 14. like one more than one
Down
  1. 1. art in three dimensions
  2. 3. select
  3. 4. to gesture
  4. 5. Thine
  5. 6. your football team
  6. 7. Go from one place to another
  7. 9. assets belonging to a person that has died
  8. 10. Flying machines live here