Ever since Guild Wars 2 fans were blown away by the Mad King's Return Halloween holiday event, everyone has been excited for ArenaNet's next big content update. The Lost Shores, announced earlier in November, looks to be exactly what fans were looking for. A three day, one time world event that will introduce a full new endless dungeon, PvP map, "Ascended" gear with "Infusion" upgrades, and perhaps best of all -- Guild Wars 2 will be free for everyone for the length of the event.

ArenaNet has just released the full schedule for the Lost Shores event, just so everyone can start making room in their schedules now:

November 16

• Defend Lion's Arch: All hands on deck! Protect the city of Lion’s Arch against strange invaders from the sea in a desperate battle for survival. Race against time to help the Lionguard uncover the mystery of these formidable new creatures!

November 17

• Retake Lion's Arch: The nigh-invulnerable karka pose a threat to every living thing on the Tyrian coast! Join the fight and help drive the karka invasion from Lion’s Arch.
• Discover a brand new map: Enter the lair of the karka—a lost island at the edge of the Sea of Sorrows. Introducing Southsun Cove, a completely new map full of wonder, danger, and exciting events! The counter-attack against the karka begins today!

November 18

• This is it: the final battle against the fierce Ancient Karka on the brand-new Southsun Cove map. Only the combined might of the heroes of Tyria has any hope against a creature this powerful, which means we need you! This once-in-a-lifetime event takes place only on November 18—don’t miss it.

Of course, these small summaries are likely just the tip of the iceberg. Expect a ton of great dynamic events, loot drops and fun all around when the Lost Shores event finally begins. The event itself starts at noon, 12:00 PST on November 16, but players that have yet to pick up Guild Wars 2 can start their free trial at 9:00 AM PST on November 15.

For more information on the event, the new Fractal of the Mists endless dungeon, the Temple of the Silent Storm beta PvP map, and everything else, check the Lost Shores page over on the Guild Wars 2 website. And of course, there's a trailer for the event where you can see the new karka enemies below.

The Lost Shores teaser - Youtube