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The Nahant Oceanological Society is a location and pre-War association in the Commonwealth town of Nahant.


Perched on the southeast banks of Nahant, this small society used to be a marine research laboratory, and is now infamous for its mirelurk nests. Robots are still active and battling aquatic mutations coming up from the bay.[1]

Before the war, the group's primary focus was sea life. It was they who first discovered that the local crustaceans were mutated from the radioactive pollutants in the North Atlantic. Once they gathered their findings, they vigorously tried to focus media and law enforcement attention on the issue; however, no one took their complaints seriously. The Boston Port Authority ignored their phone calls,[2] and Galaxy News Network spun the issue into a story about "how great shellfish season is going to be." Although the Society postulated that the increased size and toxicity of the mutant crustaceans would cause them to consume all their food sources resulting in colony collapses,[3] this was a shortsighted view, and the populations only grew after the Great War.

Meanwhile, the group was also contacted to verify the findings of the Massachusetts Department of Natural Resources.[4] The society discovered that Lake Quannapowitt was heavily polluted by radioactive particles and heavy metals. Although nearby industries (like the General Atomics factory, Saugus Ironworks, and the Corvega assembly plant) were suspected to be the source,[5] the culprit was actually Mass Fusion.[6] On June 25, the MDNR urged that the mayor cancel the annual July 4th bass fishing tournament.[5] The 2077 tournament was being sponsored by General Atomics International as a promotion for their new galleria.[7] The mayor ignored the request, and the resulting health crisis and subsequent loss of life caused the lake to be closed to the public.[5] Legal action and conspiracy followed.[8] The lake itself would remain a radioactive waste dump for the next two centuries.[9]

During the last week of October 2077, the bulk of the staff went to attend the National Aquatic Protection Symposium in Monterey. However, several members stayed behind to work directly on their research, such as Casey Reed, or indirectly to coordinate with volunteers to get more people to sign up for their upcoming blockade of Boston Harbor in protest of the war.[10] This task was entrusted to Jim Prescott, who was also in charge of powering down the oceanological instructors before he left for the weekend.[11] He forgot to do this, and the robots continued to putter around the office, spouting increasingly outdated facts for the next two centuries.[12]


This location consists of two buildings: a main building for the society with reception and offices to the east, and a separate research lab to the south. The society building has two entrance doors: one in the front (on the western side of the building) and one in the rear.

Society building

The front entrance opens to a reception area with a Novice-locked terminal. Through the double doors ahead are a small bathroom with a first aid box and mirrored cabinet, a kitchen, and a research office, which contains a weapons workbench and the back door to the pier. Two Mr. Handies employed as oceanological instructors wander the premises, announcing random facts about marine life.

A staircase leads up to the second floor, where an Expert-locked door can be unlocked with Casey's key (found in a toolbox in the cabin of the wrecked boat along a small spit just southeast of the society building). The office behind the door contains an Advanced-locked wall safe, a steamer trunk, and a duffle bag.

Outside the back entrance of the building on the pier decking to the east is a small Novice-locked shed, with an ammunition box and other minor loot inside.

Research lab

The research lab is divided into two tiers: the catwalks and the ground floor. The entrance door opens onto the catwalk tier, which has a chemistry station, a Master-locked steamer trunk, an ammo box, and a ramp descending to the lower level. The flooded lower level includes a power armor station, an Expert-locked safe that can be unlocked by the terminal next to it, a Novice-locked first aid box, three ammo boxes, and a toolbox.

Outside the lab, sets of metal ramps and stairs on the west side wrap around an empty circular pool and lead up to the flat roof, which offers a good sniping position for the numerous mirelurks and nests on the coastal fringe. Barnacle traps line the exterior walls.

Notable loot

Related quests


  • The surrounding shore is home to a number of leveled mirelurks. In particular, exploring the pier on the east side of the society building may cause several mirelurks to leap from hiding places.
  • To reach Casey's key on the boat, it is necessary to pass several mirelurk egg clutches, which will spawn mirelurk hatchlings.
  • Terminal entries here describe the research being conducted into radiation mutations and toxicity, hinted to be the results of bad business practices by large companies.
  • A "hidden" first aid box can be found on the second floor of the society building. In the first room one enters from the stairs, face west toward a few filing cabinets. There is a heavily damaged door leading to a collapsed part of the ceiling that appears to be blocked by a downed filing cabinet. Standing on the downed filing cabinet towards the wall corner to avoid the hole in the floor, one can see the first aid kit. Opening the door allows access to the kit, despite the fact that the door's intact bottom clips through the file cabinet when swinging open and shut.

Companion comments

  • When at this location, companions make comments, which are activated at two locations: the second floor of the office building and in the research laboratory.
Location comments
Character Specific location Comment
Cait second floor "I wish this damn thing would shut up."
research laboratory "Looks like someone wanted their seafood to go."
Codsworth second floor "You can't deny the enduring quality of General Atomics International. Although, I can't imagine cycling through that for the past 200 years."
research laboratory "I wonder what happened here. Tanks this size don't break easily."
Curie second floor "Ah, too bad. The data they have is not current."
research laboratory "No more fishies."
Danse second floor "It appears as though this automated tour guide is unaware of current events."
research laboratory "It appears someone went on a bit of a rampage."
Deacon second floor "Thank god these robots are still functioning to properly educate our children about the ocean."
research laboratory "And this is why we can't have nice things."
Hancock second floor "The Old State House in Goodneighbor used to have something like this. Best practice dummy we ever had."
research laboratory "See, this is why you don't play ball inside."
MacCready second floor "*Yawn* Yup, this is really fascinating. Can we stay longer?"
research laboratory "I wonder if someone smashed these tanks in, or did something smash its way out?"
Nick Valentine second floor "Don't be afraid to dream big, buddy. This isn't all you have to be."
research laboratory "You think this'll affect ticket sales?"
Piper Wright second floor "Can't believe someone hasn't put that thing out of its misery."
research laboratory "Someone was not a fan of the aquarium."
Preston Garvey second floor "This is actually pretty interesting."
research laboratory "So... which do you think it was: something wanted in, or something wanted out?"
X6-88 second floor "I've heard all of these facts a dozen times, at least."
research laboratory "Strange. Why smash the tanks?"


The Nahant Oceanological Society appears only in Fallout 4.


  • PCPC The two doors leading into the society building, as well as the shed door, may not be able to be interacted with, making the Wasteland Survival Guide inaccessible. Saving, quitting, and restarting the game may resolve this issue.[verified]
  • Playstation 4Playstation 4 Xbox OneXbox One The Nuka-Cola machine on the ground floor of the society building may glitch, causing the bottles to be lodged behind the machine. Due to the refrigerator on the right, it may make the bottles nearly impossible to access without dragging thinner items such as forks or mops to move them closer or using explosives.[verified]
  • Playstation 4Playstation 4 Xbox OneXbox One There may be a severe frame rate drop when looking in certain directions in the research lab.[verified]
  • Playstation 4Playstation 4 The Expert-locked safe downstairs in the lab building can be relocked via the adjacent computer, then unlocked an unlimited number of times for the experience points.[verified]



  1. Fallout 4 Vault Dweller's Survival Guide Collector's Edition p. 339: "[4.22] NAHANT OCEANOLOGICAL SOCIETY
    The small Oceanological Society, perched at the end of the spit of land, is a former marine research laboratory but is now infamous for Mirelurk nests and spitting barnacles. Robots are still active and battling aquatic mutations coming up from the bay. There are two interior structures to investigate (each one has a trunk to open), as well as a tiny shack (Novice) at the edge of the tumbledown pier with some ammunition inside.
    Look east out to sea to spot a beached fishing boat at the far end of the Mirelurk hatching area. Wade over and pry Casey’s key from the toolbox in the cabin."
    (Fallout 4 Vault Dweller's Survival Guide Map)
  2. Nahant Oceanological Society terminal entries; research terminal, Increased Toxicity
  3. Nahant Oceanological Society terminal entries; research terminal, Lobster growth
  4. Nahant Oceanological Society terminal entries; research terminal, Samples from Lake Quannapowitt
  5. 5.0 5.1 5.2 Lake Quannapowitt terminal entries; monitoring station terminal, Water Quality Incident Reports
  6. The pipe with the northward flowing, glowing, radioactive waste at Mass Fusion containment shed.
  7. Fishing tournament ad
  8. Legal notice
  9. Fallout 4 Vault Dweller's Survival Guide Collector's Edition p.275: "[2.02] LAKE QUANNAPOWITT
    Suffering from a pollution problem even before the current inhospitable living conditions, this remote lake provides habitat for Mirelurks and a few airborne bugs. If you must swim, dive into the northern part of the lake where a sunken rowboat yields a steamer trunk of goods."
    (Fallout 4 Vault Dweller's Survival Guide Map)
  10. Nahant Oceanological Society terminal entries; research terminal, Office Keys
  11. Nahant Oceanological Society terminal entries; research terminal, Internal Memo
  12. The oceanological instructors encountered when within the Nahant Oceanological Society office building.