Acadia (location)

Acadia is a pre-War observatory, used by DiMA as a safe haven on the Island for synths who have fled the Institute.

Background
This old astronomical observatory was claimed by DiMA and Faraday as the site of their new synth colony. The observatory became a safe haven for synths brought in from the Commonwealth.

Layout
Acadia is divided into three distinct levels. The entry level contains the dome and control center, where DiMA and Faraday reside. The level below contains a farm, infirmary, and main living quarters. The bottom level is used primarily for workshops and storage. The air around Acadia is free of fog. The observatory is situated at the top of a small mountain.

When entering through the front door there is a corridor with some stairs leading down on the right, Faraday's office and laboratory on the right past the stairs, and then the corridor leads directly into what was formerly the telescope room. DiMA can be found in this main room, often with Chase and Faraday. This circular room is lined with servers along the walls and has some stairs leading up to a mezzanine. There is also a door that is locked initially leading downstairs.

Downstairs are living quarters with several NPCs and synth refugees, including Dejen and Cog, both of whom are vendors. Continuing downstairs to the next floor is Kasumi Nakano, who has fled to Acadia from the Commonwealth, believing that she is actually a synth. There are some terminals and storage rooms located down on this floor.

Ground level

 * Acadia storage key - In the room with DiMA. Go up the stairs and follow the platform around the room until the end. There stands a table with the key on top of it.
 * Faraday's terminal password - In the observatory.
 * Faraday's program - On the table next to Faraday's terminal when eavesdropping during Where You Belong, or on the terminal when hacking it.
 * Worn key - Given by DiMA at the start of Reformation. Opens Confessor Martin's hideout.
 * Acadia's Shield - Given by DiMA if one chooses to keep his secret in The Way Life Should Be.
 * Chase's uniform - Worn by Chase.
 * Hitman's Institute laser - Given by Chase upon completion of the quest The Arrival.

Intermediate level

 * More than 40 black bloodleaves and some aster on the shelves tended by Aster.
 * Cog's journal - On a barrel in the corner, behind Cog in his store.
 * Recon marine chest piece - Sold by Cog.
 * Sergeant Ash and Old Reliable - Unique weapons sold by Dejen.
 * Islander's Almanac issue #4 - In the back of Dejen's counter on the second shelf, next to the group of candles. Stand on the inside side of the counter to see it.
 * Crippling sledgehammer - Given by Cog in The Price of Memory if the Sole Survivor talks to him instead of Jule.

Bottom level

 * Storage room notice - Posted next to the storage room in the north.
 * Three mini nukes, two fusion cores, a steamer trunk, two duffle bags, four ammo boxes, a metal box, an explosive crate and a chem box - Behind a Master-locked door that can also be opened through a Master-locked terminal.
 * Unyielding synth chest piece - In Jule's lockbox after completing the quest The Price of Memory by talking to Jule instead of Cog.

Appearances
Acadia appears only in the Fallout 4 add-on Far Harbor, and in the tabletop game Fallout: The Board Game.

Behind the scenes
There is a real world observatory located on the summit of Cadillac Mountain in Acadia National Park.