Apples are one of the rarest items in Genshin Impact. They can be used for a variety of stuff in the game, including restoring health and making recipes like Satisfying Salad. During day 5 of the Marvelous Merchandise Event, you will need to collect 10 apples.
Thankfully, while it is pretty rare to find Apple, there is a specific place where apple trees are known to be common. That is, Stormbearer mountains. Thanks to Youtuber TheEnemyStand, we have found a specific place in the map where you can find Apple trees. Watch the video to find out more about it.