Full list of all 12 A Short Hike achievements. It takes around 3-4 hours to unlock all of the achievements in the base game on Windows.
The base game contains 8 achievements, and there is 1 DLC pack containing 4 achievements.
Take a nice long nap.
You made it to the top!
Find every feather.
Trade every species of fish from the journal.
Beat each parkour race once.
Eat a piece of toast.
Get the commemorative hat.
Collect 10 golden feathers.
Complete the boating challenge in under 45 seconds.
Water every sprout.