Possible Clues:

• Midwinter festival in Lerwick
• Midwinter festival, celebration of Shetland's Norse heritage
• Midwinter festival in Shetland, celebration of Norse heritage
• Shetland festival which includes the ceremonial burning of a Viking ship
• Paul and Hayley, mostly, organised a festival
• A ceremonial burning's involved in this neglected heap usually (not American)
• Midwinter festival held in Shetland
• Raised havoc - always raised at a winter festival
• Ah, pal, yule's replaced midwinter festival