Related Clues:

• Venice byways
• Ear features
• Channels you can't surf
• Gate fasteners
• Shortcuts for ships
• Hinged door fasteners
• Artificial waterways
• Often-locked things
• Features of some diaries
• Shipping shortcuts
• Gondolas' 'roads'
• Venice's waterways
• Artificial water channels
• They're the sort of dugout one may barge into
• Such as Sue is sound