All things SEA

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Across
  1. 4. largest island solely occupied by Indonesia
  2. 8. [karaoke] is part of this country's national identity
  3. 9. SEA game, e.g.
  4. 10. home of [angkor wat]
  5. 12. something sold by the sea shore
  6. 14. at best
  7. 16. arp arp
  8. 18. example of a [channel]
  9. 19. SEA pastime
Down
  1. 1. sea games
  2. 2. "_______, a Familiar Place", a gift for SEA
  3. 3. Vietnam's most visited city
  4. 5. ominous Alice sounds
  5. 6. the vibe
  6. 7. a body of water that connects two larger bodies of water
  7. 11. water source
  8. 13. can mean stingray, or morning
  9. 15. first client in SEA
  10. 17. largest religious monument in the world