Finding the Ruins of Unte is a challenge in itself, but once you're there in Elden Ring Shadow of the Erdtree, how to get in is an even bigger mystery unless you know how.
Shadow of the Erdtree DLC – How to Access the Ruins of Unte
I find that Shadow of the Erdtree (although shorter and smaller) remains so large and intriguing because of the expansive map full of remote locations spread out over a lot of verticality. You can play for hours before discovering Bonny Village and Cerulean Coast, and Ruins of Unte is another one.
Getting there is a lot of work, so it's time you learn how to get to the heart of the Elden Ring location.
The Ruins of Unte are located right next to the Castle Watering Hole Grace, which you can reach after finding the secret stone chest in Shadow Keep.