Summer and heat!

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Across
  1. 8. Noisy summer shoes - 4,5
  2. 11. USA holiday on the 4th of July - 12,3
  3. 12. Hottest valley in the world - 5
  4. 13. Arid region, barren wilderness - 6
  5. 16. This person's summer lasted forever in '69 - 5,5
  6. 18. 21st of June - 8
  7. 20. Our closest star - 3
  8. 21. We experience our mild climate due to this - 4,6
  9. 24. Yummy treat to cool you down - 3,5
  10. 27. I used to live in a cacoon - 9
  11. 29. Make this by blocking light - 6
  12. 30. 2020 Olympic games will be held here - 5
Down
  1. 1. Use this to cool your feet in the garden - 8,4
  2. 2. Famous Festival in Somerset - 11
  3. 3. Musical featuring Summer Nights - 6
  4. 4. Glaciers form in every continent except - 9
  5. 5. No rain - 7
  6. 6. Stop burning me to curb climate change - 6,5
  7. 7. Famous English tennis tournament - 9
  8. 9. Look after us, we pollinate and make honey - 4
  9. 10. Shakespeare had this on a mid summers night - 5
  10. 14. Stop your skin burning - 3,5
  11. 15. The regular seasonal journey undertaken by some birds - 9
  12. 17. In 1888 Vincent Van Gogh painted this - 10
  13. 19. Fruity alcoholic drink, don't forget the mint - 5
  14. 22. Italian Ice Cream - 6
  15. 23. When is the Earth closest to the sun - 7
  16. 25. Overnight stay outside! Wouldn't do this in winter brrrr - 7
  17. 26. Fancy dining outside - 2,6
  18. 28. A place to play near the sea - 5