New Year's Eve 2025 in Umpherston Sinkhole, Mount Gambier: A Night You Can't Miss As the clock ticks down to midnight, there's no place quite like Umpherston Sinkhole, Mount Gambier to welcome the New Year in style. New Year's Eve 2025 in Umpherston Sinkhole, Mount Gambier promises to be an unforgettable night filled with electrifying events, dazzling fireworks, and a vibrant atmosphere that...