Related Clues:

• Beaufort and Bering
• Sargasso and Tasman
• Vast bodies of water
• Aegean and Bering
• Sargasso et al.
• Overwhelming quantities
• Pirates roam them
• Baltic, et al.
• Places for piracy
• South China and Aegean
• Mediterranean and Baltic, e.g.
• Word after open or seven
• Maria on Mars
• They can get high
• Salty expanses