This sidequest is very short and simple. At the Wetland Stable, Izra is standing at the river’s shore. Talk to him and he will tell you that there is a treasure chest under the water and he can’t get it out.
Fish out the treasure chest Izra is talking about (left), You will be able to keep this weapon as your reward (right)
Use your Magnesis rune to fish out the chest. Izra will tell you that he wants to see what’s inside, so pop it open for a Royal Broadsword. Talk to Izra again and he will let you keep it and walk off satisfied.
You wake up in the mysterious Shrine of Resurrection and see a Hyrule you no longer recognize. All you have by your side is the equally mysterious Sheikah Slate and the voice of a stranger to guide you. Take up the mantle of the chosen hero Link and journey throughout the most expansive, open iteration of Hyrule yet in your quest to destroy the monstrous Calamity Ganon and recover your memories of what happened 100 years ago.
This guide will serve as your companion as you traverse the beautiful world of Hyrule. It currently covers the following content: