This page of The Last of Us game guide contains information on where to find the artifacts and pendants in the Sewers chapter taking place in The Suburbs. Those items are collectibles-secrets. Our walkthrough indicates the exact location of each artifact and pendant.
- Artifact #46 - Boat Note
- Pendant #14
- Pendant #15
- Artifact #47 - Sewer Note
- Pendant #16
- Artifact #48 - Trading Note
- Artifact #49 - Rain Catcher Note
- Artifact #50 - Cornered Note
- Artifact #51 - Kid's Drawing
Artifact #46 - Boat Note
While going along the beach, you will bump into a shipwreck.
Behind the lost door, there is the first artifact. It is on the ship's cockpit.
Aboard the same ship, you will find a manhole leading under the deck.
Jump down into that hole and, behind the fishing net, you will find the Firefly Pendant.
While going ahead, watch the right side of the tunnel. At some point, you should notice another tunnel with water pouring out of it. The pendant is at the other end of this tunnel.
Artifact #47 - Sewer Note
When you reach the fork in the sewers, take the path to the right.
This way, you will reach a grate with many various items behind, including the artifact.
To get to the other side, you need to open the ventilation shaft to your left and wait for Ellie to get things done.
When you reach the area with the valve and the locked gate, you need to jump into the water.
You should notice a car wreck in the right corner, with the pendant next to it, under the water.
Artifact #48 - Trading Note
In the location with the flooded gate, climb onto the platform to the left. You will find a wooden palette and a locked door there. Open the second one and, by sneaking, go around the clicker or kill it silently.
There is one more creature in the room, but you do not need to worry about it, if you make no noise. The artifact is on the shelves to the left.
Artifact #49 - Rain Catcher Note
After you defeat the four charging mutants, explore the area with the barrels to the right.
There is another artifact on the table.
Artifact #50 - Cornered Note
Soon after collecting the previous artifact, you will encounter a low staircase.
Sneak up the stairs and open the blue door to your left (behind the wooden counter).
I the left corner of the room there is a corpse with the item on it.
Artifact #51 - Kid's Drawing
After you and Ellie are parted, you will have to squeeze past many zombies.
While sneaking, you will find a room that resembles a kindergarten. Take a good look at the shelves there, and you will notice the item on one of the shelves.