As with all the Fi's Hunts events, you can find the store Slurls and hints on their official blog (link below). This hunt runs from now until the end of February, so you have plenty of time to explore all the participating stores.
Good luck and happy hunting!
Official Blog: Fi's Hunts
Dates of Event: February 1st - 29th
Slurl to Event: Start Point
UPDATE 2/3/16: There is a temp problem with the official blog, SLurls and hints can be found here until the problem is resolved: Temp Official Hunt Blog