With Ezlo's help, you can now enter the Deepwood Shrine, your first dungeon. To reach it, you'll need to shrink down at the portal near Ezlo and navigate through the Minish-sized paths. The entrance to the shrine is a hollow log that is only accessible when tiny.
Inside the Deepwood Shrine, you'll encounter new enemies and your first major puzzles. The dungeon introduces the Gust Jar, a key item that allows you to suck in and blow out air, useful for clearing obstacles and moving objects. Use the Gust Jar to cross gaps, clear spider webs, and defeat certain enemies. The dungeon culminates in a boss battle against the Big Green Chuchu. Defeat it to obtain the first Elemental, the Earth Element, and complete the shrine. This dungeon is a great introduction to the game's puzzle design and combat mechanics, emphasizing the use of your new items.