Related Clues:

• With 23-Down, treasure hunters
• Huge quantity
• World leader?
• Limitless quantity
• -
• Vacation locale, with 'the'
• What ''My Bonnie'' lies over, in a song
• The Black or the Red
• Pirates' milieu
• Place for a FISH (which is a hint to this puzzle's theme)
• Marine
• They can get rough
• Shark's habitat
• Salton and Sargasso
• Huge expanse