Related Clues:

• Water source
• Abundance
• See 25-Across
• Large amount
• Continental divide?
• Where the buoys are
• Swell place?
• Neptune's realm
• Many a Melville setting, with 'the'
• See 14-Across
• Pirate's home, with 'the'
• Expanse
• The Baltic, e.g.
• Indian ___
• The deep