Though the fourth floor of Aincrad was supposed to be only a dreary, dried up riverbed, it's been transformed into a lattice of countless canals! Kirito and Asuna will need a gondola if they want to continue forward...

Having procured a boat, Kirito and Asuna are one step closer to unravelling the quest that was missing from the Beta launch. Together with their team, they'll tackle the new puzzles of Sword Art Online that await them.