Guild Wars 2 players better clear their schedule for an upcoming, one-time only event, The Lost Shores. The event, announced by the Guild Wars 2 community leader on the official forums, will run for one weekend and one weekend only.
The event begins on November 16th, 12:00 PST. The event will trigger in multiple areas but developers have suggested that players are ready at Lion's Arch for the starting of the event. The following day, November 17th, the next phase will begin until the final phase starts on Sunday, November 18th. All events begin at the same time, 12:00 PST.