Trout Eggs, Ghost Tours, and a Tree Lighting: Cold Spring Harbor's Late-Fall Calendar

The water feeding the trout ponds at the Cold Spring Harbor Fish Hatchery & Aquarium stays at 52 degrees all year. The trout in those ponds still follow the seasons, though. Brook trout spawn between September and December, according to the New York State Department of Environmental Conservation's fishing guide, and the Hatchery takes eggs from its own brook trout broodstock in early November. The trout raised at 1660 Route 25A over the coming year start in the next few weeks, and anyone who pays general admission on the right afternoon can watch it happen.

Cold Spring Harbor's late fall is easiest to plan around that cycle. The egg-taking demonstrations set the weekend rhythm from late October through November. The Whaling Museum fills weeknight evenings on Main Street. The season wraps up on December 5, when the Hatchery's tree lighting ends shortly before a concert at the church one address up the road.

What happens in the Hatch House this month

The Hatchery's education program calls it "Egg Stripping" and places it from late October through mid-November. Staff demonstrate egg-taking and fertilization and talk about how trout develop and how hatchery spawning compares with spawning in the wild. The Hatchery's exhibit guide lays out what happens to the eggs next:

1. Early November: eggs are taken from the brook trout broodstock.
2. Late December: the eggs hatch inside the Hatch House, where they are kept away from predators and sunlight.
3. About four months later: the young fish move from the Hatch House troughs into the rearing pools.
4. Within the year: they move again, into the large outdoor trout ponds.

From there, some of the stock goes much farther than Route 25A. The Hatchery raises brook and rainbow trout for stocking private ponds and says its fish are stocked across Long Island and eastern New York, as far north as the Adirondacks. The nets over the outdoor ponds are there to keep herons and ospreys away from the fish. The brown trout you see are in a separate exhibit, the Robert Koenig Memorial Pond, dedicated in September 2001.

The site has run this cycle for a long time. The New York State tourism listing dates the Hatchery's opening under state operation to 1883. The Hatchery says it closed as a state facility on March 31, 1982, and reopened the next day as a nonprofit educational center run by the Friends of the Cold Spring Harbor Fish Hatchery, Inc.

The 2026 egg-taking dates

Nearly all of the scheduled demonstrations fall on weekends, which makes them an easy add-on to a Saturday errand or a Sunday walk. The Hatchery's event calendar lists these sessions for the 2026 season:

The last listed demonstrations fall on Thanksgiving weekend. Tuesday, November 3, stands out on the calendar. Along with the longer Hatchery Egg Take, it has a Kid's Craft and Scavenger Hunt that runs from 10 a.m. to 5 p.m.

The Hatchery is open daily from 10 a.m. to 5 p.m. and closed on Thanksgiving Day. General admission is $7, $6 for ages 65 and up, and $5 for ages 3 to 12. Children 2 and under and members get in free. No separate fee is listed for the demonstrations themselves.

The rest of the Hatchery's fall calendar builds on the same afternoons:

• Haunted Hatchery, Saturday, October 24, 2 to 5 p.m., the same day as the first demonstration.
• Craft Time sessions: build a wood bird feeder on November 7 ($5 members, $11 nonmembers), decorate a ceramic turkey on November 21 ($6 and $11), and make DIY wooden binoculars on December 12 ($6 and $10). The Hatchery's registration sheet shows both 11 a.m. and noon start times, so check your slot when you sign up.
• Thanksgiving Craft, Friday, November 27, 11 a.m. to 3 p.m., the day after the holiday closure.
• Pollywog Adventures, Wednesdays at 11 a.m. through December 9 for ages 2 to 5, with preregistration required.

Main Street carries the evenings

The Hatchery's events end at 5 p.m. The Whaling Museum at 301 Main Street picks up the evenings, and its fall lineup stays with the same subject of life in and on the water.

The adult events come first. Ghosts in the Galleries runs Friday, October 23, from 7 to 10 p.m. with Victorian Halloween programming. Tickets are $25, or $20 for members. On Wednesday, October 28, at 6:30 p.m., Beyond the Book takes up Daniel Kraus's novel Whalefall, about a diver trapped inside a sperm whale, and spends the evening on the real sperm whale anatomy behind the story. The discussion is free for museum members and for patrons of the Cold Spring Harbor, Huntington, and South Huntington libraries, and $15 for everyone else. The museum already had sperm whales on its schedule this year. In May, Huntington Now reported that it had a new life-size inflatable sperm whale for educational use and asked the public to help name it.

November has three more evenings on the museum's calendar:

• Crafts & Cocktails: Corn Husk Figures, Thursday, November 12, 6:30 p.m., with an apple-infused "Golden Harvest" cocktail or mocktail. $35, or $25 for members.
• Pickle Party!, Sunday, November 15, at 1 and 3 p.m., a National Pickle Day workshop on what whalers ate at sea, with tastings and a jar to take home. $15 plus admission, or $10 for members.
• Beyond the Book: Gales of November, Wednesday, November 18, 6:30 p.m., on John U. Bacon's account of the Edmund Fitzgerald, with the same library-patron pricing as October's discussion.

Families get one large daytime event. Haunted Boo-seum: Ghost Edition runs Sunday, October 25, from 11 a.m. to 3 p.m. It has a potion station, a fortune teller, live sea critters in "Davy Jones' Locker," and a Ghost Lab. Tickets are $20 for kids, $10 for adults, and $5 for seniors, and adult and senior members get in free. Families who head out from the Boo-seum before it closes can still catch the Hatchery's 1 p.m. demonstration that afternoon. All of this runs under the museum's Liberty at Sea program for the nation's 250th anniversary. That program includes a self-guided Culper Spy Ring activity, Secrets & Spies, which continues through December.

A short drive away, Cold Spring Harbor Laboratory offers a Halloween-edition guided walking tour of its campus on Saturday, October 31, from 10:30 a.m. to noon. The tour meets at Grace Auditorium, One Bungtown Road. It ends in time for the Hatchery's 3 p.m. demonstration that afternoon.

For anyone reading this on October 22, Grasso's hosts its Witches Night Out tonight, with a Spooky Spirits & Small Plates menu from 4:30 to 7:30 p.m. and live music from 6:30 to 10 p.m.

Two neighbors on Route 25A

Concerts by the Pond performs at St. John's Episcopal Church, 1670 Route 25A. That is ten numbers up the road from the Hatchery's 1660. Three concerts remain on the series' 2026 calendar:

• Duo Karolina & Iwo, Sunday, October 25, at 3 p.m. That is the same Sunday as the Boo-seum and an egg-taking demonstration, and the concert starts two hours after the demonstration.
• Trio Mediæval, Saturday, December 5, at 7:30 p.m. Tickets are $75, or $60 for students.
• Holiday Swing II, with the Konrad Paszkudzki Trio and April Varner, Saturday, December 12, at 7:30 p.m. Tickets are $45, or $30 for students.

No concerts are scheduled for November. That leaves November to the Hatchery's weekend demonstrations and the museum's weeknight events. The series comes back on December 5, the same night the Hatchery holds its Tree Lighting Ceremony from 5 to 7 p.m. The tree lighting ends thirty minutes before Trio Mediæval begins next door, so the evening can start at one and finish at the other.

Here is how the season lines up week by week:

The Hatchery's guide says the eggs taken in early November hatch in late December, a couple of weeks after Holiday Swing II closes out the concert season.

Some of us measure the seasons in Cold Spring Harbor by what is happening in the Hatch House or on the Whaling Museum's calendar. If that's you, and you're wondering how a home could keep that kind of routine close at hand, Anthony Prettitore would be glad to talk it through with you, whenever it suits. Let's Connect.