Related Clues:

• With 23-Across, Neptune, e.g.
• Davy Jones' locker
• Irish or Baltic, e.g.
• Whale's home
• North or South China
• Liner's milieu
• Baltic --
• 49 Across' venue
• Dolphin home
• One of seven in the world
• Word with horse or bass
• Vast amount
• One of the seven
• Where skates glide
• Swell place