Tyria is the world in which most of the game is played. Currently the known continents in the world of Tyria are Tyria (of the same name), Cantha, Elona, and the PvP archipelago known as The Battle Isles. Also, in the Guild Wars Nightfall Manuscripts, it is stated that, in 731 CC, Cantha began trading with the "northern areas", along with Tyria and Elona. Whether they will be included in future campaigns is yet to be seen. The world of Tyria also has the following seas and oceans: * The Unending Ocean. * The Sea of Sorrows, formerly known as the Bay of Sirens.