Where You Belong DLC, Far Harbor Quest
This quest will be triggered or can be aquired when you complete Walk in the Park quest.
Related points of interest
Stages of "Where You Belong" quest
1. Talk to the Leader of Acadia
I've arrived in Acadia, the refuge for synths. I should talk to whoever is in charge and see what they know about Kasumi.
During the talk, you will receive a new side quest Acadian Ideals.
2. Talk to Kasumi Nakano
I've met DiMA, the leader of Acadia. He's opened the compound to me, and says I can see Kasumi Nakano whenever I want.
She is at the bottom level of Acadia.
3. Uncover DiMA's Secrets
Kasumi thinks that DiMA is secretly planning something that threatens the entire island. She wants me to get to the bottom of what's going on.
3.2. (Optional) Gain Access to the Storage Room
Storage room is at the bottom level of the Acadia and it's expert locked.
3.2.1. (Optional) Eavesdrop on the Meeting
Hide inside the storage room and listen to the converation of DiMA, Chase and Faraday.
4. Report Back to Kasumi
I've found out that DiMA's earliest memories are being held by the Children of Atom. I should talk this over with Kasumi.
5. Quest completed
It turns out that DiMA's earliest memories are in the hands of the Children of Atom. I need to access those memories and find out what's in them.
Next / new quests are Best Left Forgotten (DLC, Far Harbor), Acadian Ideals (DLC, Far Harbor).