Related Clues:

• Indian or Arctic
• Big body
• Baltic, e.g.
• SpongeBob's home
• The Caribbean, e.g.
• Thalassographer's study
• Shark habitat
• Aegean or Bering
• Place to have a sub?
• Whale's place
• Land's end, perhaps
• _____doo
• Poseidon's place
• Sailing site
• See 130-Across