How to Explore the Sunken City and Fight the Coralssus

The Sunken City is an ocean dungeon filled with Deepling enemies and the Coralssus boss. Water breathing and depth strider are effectively mandatory.

Preparing for the Dive

Brew water breathing potions, enchant boots with Depth Strider, and bring a Riptide trident or the Azure Sea Shield for mobility and defense. The Sunken City is guarded by Deepling, Deepling Angler, Deepling Brute, Deepling Priest, and Deepling Warlock. Priests and Warlocks buff and heal the others, so kill them first.

Navigating the Dungeon

Azure Seastone Bricks, Pillars, and Murals mark the structure. The Murals (Cindaria, Clawdian, Hippocamtus, Urchinkin, and others) are decorative but help you orient yourself. Look for the boss chamber at the deepest point.

Fighting Coralssus

Coralssus uses Coral Spear and Coral Bardiche attacks and summons Coral Golems. Fight it in open water where you can circle-strafe. When it winds up a bardiche swing, swim backward and to the side. Kill Coral Golems as they spawn so they do not pile up. Defeating Coralssus rewards Azure Seastone and Sunken City loot used in Cataclysm crafting.