Museum Scavenger Hunt Covers Game of Thrones Winter is Coming! Looking for a fun activity during the Fergus Falls Frostbite Festival? On Sat. Feb. 2 from 10am-2pm, visit the Otter Tail County Museum and try the new Game of Thrones scavenger hunt in the museum galleries. Find out what’s over The Walls of the historical society. Adults- $5, Wildlings under 12- $2