Below is a walkthrough for the Level 22 Drowned Hopes side quest in Horizon Forbidden West. To obtain this quest, speak with Gendas at a Carja Camp southeast of the Tallneck: Cinnabar Sands.
Go to the Dig Site
Before leaving camp, inspect the tent near the roasting fish to find the How’s the Weather? Datapoint – Side Quest. When you’re ready to progress, leave the camp and make your way to the objective in the southeast.
Kill the Machines
Once you reach the dig site, defeat all the machines there.
Investigate the Submerged Ruins
In order to do this objective, you’ll need the Diving Mask, which you can obtain during The Sea of Sands main quest. Once you have it, head into the water west of the dig site and locate a large section of a building that you can swim into. Interact with the console here to obtain a Datapoint.
Go to the Coordinates for the Console
Head southwest from the dig site to reach Dread Bluff.
Search the Ruins of a Security Console
Once there, clear out the machines. Afterwards, head into Dread Bluff then make your way to the elevator hanging in the shaft. You’ll then be able to access the console. Interact with it then loot the Ancient Trunk nearby to obtain a Vault Key.
Go to the Coordinates for the Console
Head west to Devil’s Slide where you’ll need to dive underwater to find the door to the facility.
Search the Ruins of a Security Console
Open the door then head left through the hallway. Pry open the last door on the left to find the console. Interact with it then loot the Ancient Trunk nearby to obtain a Vault Key.
Search the Ruins for a Mobile Cover System
Head south of Devil’s Slide to the Drowned Gullet. Once there, dive underwater to find a tunnel. When you emerge to the other side, you’ll reach a clearing with a couple of machines and a facility on the other side. Work your way to the facility by either sneaking past or fighting the machines. Once inside, head for the back room where you’ll need to insert all 3 Vault Keys to unlock the door. Head through the newly opened door and pry open the Ancient Trunk o receive the Mobile Cover System Prototype.
Return to the Carja Scholars
Head back to the scholars at the camp and speak with them.
Craft the Guardian Tripcaster
Interact with the workbench to craft the Guardian Tripcaster under the Quest Items tab. This will complete the quest.
Rewards
- 7150 XP
- 2 Skill Points