Passively
N/A
Actively
Within Pothole Dungeon, Karamja. You can get there by either the fair ring code CKR and walk north, or by teleport to the Brimhaven Spirit Tree and walk south. Place the cannon as per the screenshot and stand in the safe spot below the cannon
Tips
You can bring a ranged weapon (blowpipe, other) to add additional kills per hour.
