A Short Hike Cheats and Tips
In order to avoid skipping anything, you may want to talk several times to each animal you will meet. Many of them have quests for you, and their rewards are sometimes required to help you progressing through the mountain, but they are also necessary if you want to unlock all the achievements.
Moreover, as soon as you discover a new water source, be sure to fish for a minute or two. A couple of tries should be enough to allow you to get a new entry in your journal.
Eventually, do not hesitate to explore the mountain away from the main trail, because many chests and resources are hidden around the mountain.
All Gold Feathers