Related Clues:

• Realm of Proteus, in Greek myth
• Melville subject
• Cruise milieu
• Anemone's home
• Poseidon's purview
• Cousteau's domain
• Aegean or Baltic
• Triton's realm
• Black, for one
• ___ of Tranquillity
• Word with ''level'' or ''lion''
• Ligurian, for one
• Adriatic or Aegean
• Red thing that's really blue?
• It can be very fishy