Nature

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Across
  1. 2. : A large area full of trees
  2. 3. : A low area between mountains
  3. 4. : A very high hill
  4. 7. : Water falling from a height
  5. 10. : A sandy place next to the sea
Down
  1. 1. : A very dry, sandy place
  2. 5. : A very large sea
  3. 6. : Land surrounded by water
  4. 8. : A long, flowing body of water
  5. 9. : A large area of water surrounded by land