MAYBE YOU'LL FIGURE THIS OUT

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Across
  1. 3. NATURE'S SWING AND SLIDES
  2. 5. OVER 200 FORMATIONS
  3. 7. SIMPLE LIFE
  4. 8. OUTSIDE I GUESS
  5. 10. 500,000 SPECIES OF
Down
  1. 1. TERRAPIN
  2. 2. 900 SPECIES OF
  3. 4. "SAVE ME" - EARTH
  4. 6. ONE OF THE _ COUNTRIES IN THE WORLD
  5. 9. HIGH LIFE EXPECTANCY