Photo Friends Trophy
Get your photo taken.This will be a 2-part trophy. You'll need to have picked up at least 7-8 Feathers to get this. You will also need to reach the summit at least once before you can do the second part.
Part 1: At the bottom of Hawk Peak, just near where the cliff sides start to get steep, there will be a Fox that you can talk to.
Exhaust the conversation with him until he tells you that he wants to reach the top of the mountain to take some photos.
Part 2: After the conversation ends, make your way up the mountain and just before the summit, you'll run into the Fox again, just next to a broken bridge. Speak with him and he'll ask you if you made it to the summit, then will ask to borrow 6 Feathers so he, too, can reach the top. Lend him the feathers, then make your way to the top of the mountain. Wait for him to join you and start talking to him. After a bit of back and forth, he'll offer to take your picture. When he does, the trophy will unlock.