Dive: From the other side of the lake in Lultzhausen.

• GPS water access waypoint: N49° 54.555' E5° 53.133' (LULTZ3)
• swim across the water to the opposite side with your diving equipment
• a bench close to the water marks the exact position to start your dive
• heading 110° straight to the ruins, first you will cross an old road at 20m, then after 3min dive time you will see the ruins

Note: The ruins are located exactly 60m from the lakeside.