Possible Clues:

• Spades also found alongside large, empty beachfront building?
• Keep being swept away by the tide, perhaps?
• Model players plugging smooth covers of Lindisfarne
• Smooth piece in gritty construction
• Beachfront building with free rent?
• Smooth man that may be found on beach
• Strand building shortly due for demolition?
• *Place to see shell decorations
• Bit of beach architecture
• Last dances arranged in temporary beach construction