Landscape adjectives

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Across
  1. 2. The cliffs are very ___, you need good shoes to climb them.
  2. 3. The trees in this forest are so ___, you cannot see the sky at all.
  3. 4. The valley is very ___, the sun never shines there.
  4. 7. The cave is too ___, we need to bring a lamp.
  5. 9. The shore is very ___, there is no sand, only sharp stones.
Down
  1. 1. The ocean is so ___, we still don't know all the animals who live down there.
  2. 2. The water over here is ___, I can see the rocks on the floor.
  3. 5. The river is very ___, we need at least 20 minutes to cross it.
  4. 6. The stream is so ___, you can jump over it without getting wet.
  5. 8. The water in the lake is ___, so if you go for a swim, you will get a cold.