The magic of Dannevirke's Fantasy Cave put a spell on more than 11,000 visitors last year, up on the previous year's attendance.
"We had 11,075 visitors from all around the world come and share the excitement of the cave last year," volunteer Liz Edwards said.
"The Saturday before Christmas was a record breaker with 490 through the cave. That's the biggest number in the cave's 25-year history.
"December was fantastic, but we had to feel for our Father Christmas on the very hot days. He almost melted."
And the crowds kept coming, lifting last year's visitor numbers to 1000 more than the year before, Cave president Ces Edwards said.