The Liquid Courage Treasure Hunt is a kind of mystery type of quest of Far cry 6. This Treasure hunt quest does not involve much action and few interactions, so it is a kind of no-action quest. But the enjoyment of the game remains as the others.
With that being said, here is a walkthrough to guide you through the Liquid Courage location quest.
Liquid Courage Treasure Hunt Location

Treasure Hunt | Liquid Courage |
Region | Valle De Oro |
Sub-Region | Noventarmas |
Reward | Into Orbit (Unique Rocket Launcher) |
XP Reward | 150 XP |
The Liquid Courage Treasure Hunt location is present in the Noventarmas sub-region of the Valle De Oro region of the imaginary island nation Yarabi in Far Cry 6.
The transporting to the treasure hunt location requires reading the note at the starting point of the location in the open world. To show where the Liquid Courage Treasure Hunt location is the location is pointed out with a purple diamond.
Objective
The objective of the Liquid Courage Treasure Hunt is to check the brewery as there are some rumors of some strange and suspicious activities happening there. Winning the objective will also earn you rewards.
How to Complete the Objective

Reach the Liquid Courage Treasure Hunt location by reading the starting note in the open world. Then enter through the door and follow the path.
There you will enter into a room, where you will find four valves that you need to use in order to fulfill the objective of the Liquid Courage location quest.

Start from the valve on the right side of the room present next to a container with lootable metal sources. This is the first valve that you need to use.

Then head towards the second valve present at the left corner of the room towards the left of the boiler. For more clarity, it has three lights on it. Use it then.
Now after using the second one head towards the third one present upstairs. So go up the stairs and climb the pipes to reach the third valve and use it.

For the fourth valve, you have to reach the middle of the boiler room. To use the fourth valve you need to make sure that the first three valves are used found and have their lights turned from red to green.

After using the fourth valve the boiler will explode and make a hole above the fourth valve in the ceiling where you will get to grapple up, which you will use to crouch through the vents.

After crouching through the vent, you will find the office with a dead body and the treasure chest on the other side of the vent.

By finding this, you will complete the Liquid Courage Treasure Hunt quest’s objective and find what strange things are happening in the brewery.
You will find the unique Rocket launcher in the treasure chest as a reward.
Rewards
On the completion of the objective of the Liquid Courage Treasure Hunt, you will get 150XP and Into Orbit. The Into Orbit is a unique Rocket Launcher that you can only acquire after completing the objective of the Liquid Courage Quest.
Other Far Cry 6 Guides
Sword-Crossed Lovers Treasure Hunt