DiMA's Cache

This location marker will only appear after recovering DiMa's memories during the main quest “Best Left Forgotten”. The location itself is just a spot where you can dig the Wind Turbine's Kill Switch codes that will shut down the fog condensers protecting Far Harbor. The quest “Cleansing the Land” will start after recovering the codes.

There's an explosives crate floating on driftwood along the way, as well as a first aid box washed on the other side of the shore. There's an advanced safe on a wrecked wooden boat to the southwest where the crate is found. There are several anglers in the area so you have to be careful when heading there.

You have to cross the deep water so if you have power armor with you, leave it on the other side of the island. There might be a mirelurk queen and some mirelurks that will spawn on the small neighboring island to the NW of the map marker.