Sewers

The Last of Us™ Part I guide · Traversing the underground tunnels

Joel, Ellie, Henry, and Sam enter the drainage tunnels after escaping the beach near the Pittsburgh outskirts to evade hunters. They must navigate dark, flood-damaged corridors, disarm improvised traps, and solve water-crossing puzzles to find their way through an abandoned subterranean survivor community. The trek culminates in a chaotic ambush when the group accidentally triggers a sound alarm and gets separated while trying to reach the surface.

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Firefly Pendant (Josh Scheffler): Inside the first flooded room with the submerged grate, dive into an open drainage pipe on the right side to find the pendant submergedFirefly Pendant (Robert Righetti): In the flooded cavern area before reaching Ish's community, look inside a small side room situated on the right side of the main pathNote: Sewers Note: In the early tunnel section, boost Ellie through an open vent above a locked chain-link gate so she can unlock the door from the inside; the note rests on a table withinShorty: Resting on a table inside the workshop area of Ish's underground settlement, just past the improvised soccer goal and classroom areaNote: Note to Ish: Found on a small table near the mattress in the side room where Henry and Joel search shortly after entering the subterranean settlementNote: Note to Ed: Located in a side sleeping quarters room behind a rack in Ish's community areaFirefly Pendant (Eddie Fuentes): In the large submerged reservoir room where you must ferry Ellie across on a wooden pallet, dive underwater next to a sunken car near the far corner

Achievements here

WaterloggedNavigate Ellie across the water using the wooden pallet to activate the sewer drainage contraption, then ride the moving mechanism with Henry and Sam.

Achievement guide and roadmap →

Secrets

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Abandoned underground classroom and living quarters detailing Ish's story through environmental storytelling, notes, and children's drawings on the walls | Found by exploring the side rooms and main hall of the subterranean settlement after passing through the flooded reservoir

Enemies

Clicker

Weak to Headshots with high-power weapons, Shivs, Shotgun blasts

Blind but detects movement via echolocation; instant-kill melee if it reaches Joel unless equipped with an upgradeable defensive shiv

Stalker

Weak to Melee attacks, Shotgun

Aggressive infected that actively take cover, peek around corners, and ambush Joel in packs within the darker nursery and classroom tunnels

Runner

Weak to Melee, standard firearms

Fast, sighted infected encountered in mixed groups throughout the later tunnels; easy to dispatch with stealth takedowns if approached from behind

Tips

Use your flashlight sparingly around Stalkers, as they will coordinate flanking maneuvers in the dark corridors once alerted.
When ferrying Ellie across the flooded reservoir with the wooden pallet, look for floating scrap and supplies tucked along the submerged walkways before starting the engine generator.
During the door-defense sequence near the exit, place a nail bomb near the hallway bottleneck to eliminate the initial cluster of sprinting infected before they breach the barrier.

Not listed for this area: shops and people.

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