The folks at Guild Wars have released information about their upcoming Wintersday Festival.

Wintersday is almost upon us. That time of year when the gods Dwayna and Grenth fight over who will control the weather during the coming months. Will Grenth have his way and plunge the world into eternal winter or will Dwayna be able to melt enough hearts to bring about an early thaw? You will have the final say as the gods vie for your vote during the grand finale.

The Wintersday event begins at Noon Pacific time (-8 GMT) on Friday, December 21, 2007 and runs for 12 days. During the event, the cities of Kamadan, Lion's Arch, Droknar's Forge, and Ascalon City will shine like beacons in the winter night sky with festive Wintersday decorations, while holiday NPCs walk the streets lending their holiday spirit to this jolly season. Visitors to these four cities will be invited to participate in special holiday quests, missions, and games, all with their own rewards. And don't be surprised if a snowball fight breaks out before the end of the festival.

In addition those activities, the Wintersday grand finale will take place in Lion's Arch and Kamadan every three hours during Wintersday itself. The first finale will begin at 12:01 AM Pacific on Tuesday, January 1, 2008, and the final event will begin at 12:01 AM on Wednesday, January 2, 2008.

So, mark your calendars and be sure to show up for another special Wintersday event in the world of Guild Wars. It promises to be the event of the season!

More on the event here.