Related Clues:

• Nautical ''seven''
• Seven waterways on Earth
• Sub sites
• They can be calm or rough
• Red and Black water bodies
• Oilers' milieux
• Cruise ships' domains
• Fleet settings
• High waters?
• Fishy places
• Where subs are ordered
• Map's blue areas
• Poseidon's provinces
• Vast water sources
• Pirates' milieux