New dungeons have been added to the game: Malangdo Culvert and Octopus Cave. To access the dungeons, you must have special items. They can be obtained by defeating different MVP monsters. For more information about the dungeons, check the patch notes: Malangdo Dungeons. For more information about the "Arena Chest" event, please visit the link: Arena Chest You can purchase Seagod's Protection and Octopus Hunting Stick from Special vending machine (malangdo 218 165) using the Silvervines.