Here is the full list of all 43 The Pathless achievements.
Collect all achievements.
Witness the extended ending.
Find all the lore of the Pathfinder's story.
Drift 300 meters down a river.
Run with 6 animals.
Reach the highest updraft above the mountain.
Collect the gift from every spirit.
Obtain the Gift of the Bear Spirit.
Collect all the lightstones.
Collect all the Bear lightstones.
Reach the observatory.
Fly for over a minute without touching an updraft.
Obtain the Gift of the Elk Spirit.
Collect all the Elk lightstones.
Chain 10 skill shots in a row.
Obtain the Gift of the Snake Spirit.
Collect all the Snake lightstones.
Get 10 flaps.
Obtain the Gift of the Lizard Spirit.
Collect all the Lizard lightstones.
Reach the old fortress.
Slide 400 meters down a steep slope.
Complete the game and view the credits.
Cleanse the Mountain Tundra.
Discover 45 lanterns.
Cleanse the Great Plains.
Discover 45 lore messages.
Discover 30 lanterns.
Complete the puzzle at the Bathhouse.
Discover 30 lore messages.
Survive 3 storm encounters unscathed.
Shoot 1,000 talismans.
Complete the puzzle at the Textile Workshop.
Cleanse the Redwood Steppe.
Bounce an arrow off two mirrors.
Fall 150 meters without gliding and land hard.
Discover 15 lanterns.
Cleanse the Forest Plateau.
Complete the puzzle at the Monastery.
Discover 15 lore messages.
Pet the eagle 4 times.
Shoot 5 talismans while airborne before touching the ground.
Reach the mainland.