Related Clues:

• Firth of Clyde, for one
• Fjord, for example
• Coastal passage
• River mouth area
• Sheltered water
• Entrance to a bay
• Bay, for one
• Chesapeake Bay or Oslo Fjord, e.g.
• Sound, say
• Shoreline breaker
• Body near a sound, perhaps
• Means of entry
• Arm of a sea
• Coastal area
• Marina locale