The Witness
13 Achievements
1,000
15-20h
Marsh
Activate the Marsh laser. Details for this achievement will be revealed once unlocked
75
6.38%
How to unlock the Marsh achievement in The Witness - Definitive Guide
Description: Activate the Marsh laser. (Secret)
You need to solve all puzzles in the Marsh(Swamp) Area. To do it watch the video below:
All Credits go to PS4Trophies Channel on Youtube.com
In order to unlock this trophy, you must complete the Marsh area, located to the mid-right of the island (refer to map if needed - named "Marsh"). The Marsh area begins on a metal walkway, floating above the marsh surface and ends near a giant stump above the marsh. There are 52 puzzles to solve in this area in order to reach the laser.
If you are in need of assistance, you can refer to the video below:
The Marsh area is located in the back of the map between the Treehouse area and the Mountain. It contains the tutorial for tetris shape puzzles and only these types of puzzles, so no prior knowledge is necessary. Tetris puzzles show up in lots of areas so it's a good idea to make this an early stop to learn tetris puzzles.
For a walkthrough of the Marsh area, use THIS LINK for all puzzle solutions. Once you've solved the red area and make your way up the path, activate the laser to unlock the achievement.