Pokemon Go is about to become a winter wonderland as Niantic has announced the next seasonal event for its mobile titan: Winter Holiday.

The Winter Holiday event will begin Thursday, December 16 at 10 AM local time and run until New Year's Eve at 8 PM local time. Some of the event's activities are split between the event's two-week schedule, but the majority of changes--including a brand-new Postcard Book feature--will debut when the event begins and run through the entire Winter Holiday.

Below are the Winter Holiday activities that will run the entirety of the event: