Related Clues:

• Proverbial heptad
• Red and Black
• They may be high or heavy
• 'High' bodies
• Aral and Arabian
• Caspian, and others
• Scuba spots
• Bodies of salt water
• Aegean and Mediterranean, say
• Sounds like what I does by the sound of them
• Sounds as if one might get to grips with the waters
• The sound of the bees precedes them
• They follow the bees, by the sound of them, but never land (4)
• Oceans' relatives
• Seven things for a sailor