Given to you as part of the Count Ymir questline, the initial Ruins Map, Ruins Map 2nd, and Ruins Map 3rd all task you with finding a unique hallowed ruin each time.
Doing so requires you explore much of the map — including reaching the Hinterland and Cerulean Coast — which this Elden Ring DLC guide will explain in detail.
To get there, head northeast from the Cerulean Coast Cross Site of Grace, riding along the coast westward until you reach a giant stone slab ramp, on the other side of which is the Finger Ruins of Rhia Site of Grace.
Finger Ruins of Rhia is a massive crater filled with Fingercreepers and Snakemen.
Near the northern end of the crater is a ritual site of four standing stones shaped like fingers, with a Hanging Bell at its center.
Simply walk up to the bell, where you’ll be prompted to “Sound the hanging bell.” You’ll receive the Crimson Seed Talisman +1.
Once completed, return to Ymir, who will give you another Ruins Map. Speak to Jolan while you’re there.
Ruins Map (2nd) points you to Finger Ruins of Dheo, east of the Hinterland in Scaduview.
The Hinterland and Scaduview are accessible through Shadow Keep.
Our full Shadow Keep Back Gate explainer can give you a step-by-step guide of where to go as it’s somewhat complicated, but in short, once you reach the Back Site Site of Grace, walk north, where you’ll see a side passage to the east that leads to a headless statue of Marika.
At this altar, you’ll need to use the “O Mother” gesture to open a secret passageway leading to the Hinterland site of grace.
From Hinterland, head east to the Fingerstone Hill Site of Grace, then southeast to another crater populated with Snakemen (including Snakemen who can paralyze you with a powerful spell).
Near the southern end of the crater is a ritual site of four standing stones shaped like fingers, with a Hanging Bell at its center.