Beach time.

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Across
  1. 4. and spade something to make sand castles with
  2. 5. on rocks
  3. 7. you get sweaty
Down
  1. 1. something to make out sand
  2. 2. in the water
  3. 3. Man's best friend
  4. 6. cream nice treat
  5. 8. lolly something cold and delicious