Brook Trout Season at the Cold Spring Harbor Hatchery Fills November Weekend Afternoons

At 1:00 and again at 3:00 on most Saturday and Sunday afternoons this November, staff at the Cold Spring Harbor Fish Hatchery & Aquarium will take eggs from brook trout and fertilize them. The work takes half an hour, and the water it depends on comes up out of the ground at 1660 Route 25A.

The Hatchery's guided programs page describes egg taking as a centuries-old way of breeding fish and calls its version "unique to our Hatchery." It is also one of the few places in the village where the name Cold Spring Harbor still describes something you can see working.

The Water Behind the Name

The Town of Huntington's historian traces the name to the area's plentiful freshwater springs. "Harbor" was added in 1826 to set the place apart from a Cold Spring on the Hudson River, as the Huntington Town Historian's account explains.

Those springs still run the Hatchery. According to the Hatchery's own FAQ, its water comes from spring water and six artesian wells: 50 to 75 gallons per minute from the Upper Spring Pond and 325 gallons per minute of well water. The water holds at 52°F all year. No pumps are used. Underground pressure pushes the water up, and a slight slope across the grounds carries it through the trout ponds.

The temperature matters because trout are particular. The Hatchery says they need cold, well-oxygenated water between 50 and 65°F, and can handle up to 70°F only for short periods. A supply that stays at 52°F in August and in January keeps the ponds within that range year-round.

The site has been doing this for a long time. New York State's tourism listing says the hatchery first opened in 1883. The state closed it on March 31, 1982, and it reopened the next day as a nonprofit educational center that kept raising and stocking trout.

What Happens at 1:00 and 3:00

The eggs are local too. The Hatchery takes its brook trout eggs from broodstock, the breeding fish it keeps on site. The school version of the program, which the Hatchery calls Egg Stripping and runs from late October through mid-November, shows what the public demonstrations cover. Staff take the eggs and fertilize them, then talk about how trout develop and how breeding at a hatchery compares with spawning in the wild. Schools in the Trout in the Classroom program can get a batch of fertilized brook trout eggs from the Hatchery, so some of the eggs leave the grounds as classroom projects.

The fish raised here also leave. The Hatchery sells brook and rainbow trout for stocking and delivers them across Long Island and eastern New York, as far north as the Adirondacks. Most of the fish it stocks are 10 to 18 inches long. It stocks mainly in spring and fall, because July and August heat stresses trout and makes them harder to move.

The demonstration listings do not say whether the session is included with admission or needs a reservation. Calling the Hatchery at (516) 692-6768 before you go is the simplest way to find out. The Hatchery lists general admission at $7, ages 3 to 12 at $5, 65 and over at $6, and free for children 2 and under and for members. It is open daily from 10 a.m. to 5 p.m.

The Remaining Schedule

As of late October, the Hatchery's 2026 calendar has demonstrations on the dates below. Each date runs two half-hour sessions, 1:00 to 1:30 p.m. and 3:00 to 3:30 p.m. The calendar also lists other programs on some of the same days.

The calendar also has a separate weekday listing, "Hatchery Egg Take," on Tuesday, November 3, from 11 a.m. to 3 p.m. The November 7 craft ends at 1 p.m., right when the first demonstration starts, so that visit pairs best with the 3:00 session. The November 21 craft finishes at noon, which leaves time before either session.

Up the Hill to St. John's Pond

The water story continues past the Hatchery's ponds. St. John's Pond lies directly south of the Hatchery and feeds its Warm Water Pond and turtle pond.

The pond sits inside The Nature Conservancy's St. John's Pond Preserve, which the Conservancy lists as open to the public. To get there, the Conservancy directs visitors through the Hatchery grounds toward St. John's Church and up to the upper lot, where the preserve entrance is at the left end. The lot holds up to 10 cars.

The preserve covers 14 acres of unusually old forest. A steep trail drops down to the pond past large tulip trees, oaks, and mountain laurel. The Conservancy lists birds, turtles, and muskrats there, and possibly river otters. The Conservancy doesn't post hours for the preserve, so plan to walk it in daylight.

Down to Main Street on November 15

The Cold Spring Harbor Whaling Museum at 301 Main Street keeps fall and winter hours of Thursday through Sunday, 11 a.m. to 4 p.m. Its November calendar overlaps with the Hatchery's on one weekend.

On Sunday, November 15, the museum's Pickle Party runs at 1 p.m. and 3 p.m., the same times as that day's demonstrations. Families taste pickles, learn about the preserved food whalers ate at sea, and make a jar to take home. The cost is $15 plus admission, or $10 for members. Because the two programs share a schedule, a household can see trout eggs fertilized at one session and make pickles at the other.

The rest of the museum's November and December events follow the same hands-on pattern:

1. Crafts & Cocktails: Corn Husk Figures, Thursday, November 12, at 6:30 p.m. Adults make corn husk dolls, a craft rooted in Indigenous agricultural traditions, with an apple-infused "Golden Harvest" cocktail or mocktail. $35, or $25 for members.
2. Beyond the Book: Gales of November, Wednesday, November 18, at 6:30 p.m. A discussion of John U. Bacon's book on the 1975 sinking of the Edmund Fitzgerald. Free for members and for patrons of the Cold Spring Harbor, Huntington, and South Huntington libraries, $15 for everyone else.
3. Secrets & Spies, during gallery hours through December. A self-guided search for hidden messages about the Culper Spy Ring, part of the museum's year-long Liberty at Sea program marking the 250th anniversary of the Declaration of Independence. Admission plus $10 per participant, or $5 for members.

For a longer walk, Cold Spring Harbor State Park at 95 Harbor Road is open year-round from sunrise to sunset with no fee. It is the northern trailhead of the Nassau-Suffolk Greenbelt Trail.

How the Season Ends

The Hatchery is closed on Thanksgiving Day, November 26. It reopens the next morning with a Thanksgiving Craft from 11 a.m. to 3 p.m. on November 27. The last demonstrations follow on November 28 and 29, a good option for a holiday weekend with family visiting.

After that, the calendar moves to evenings. The Hatchery's Tree Lighting Ceremony is on Saturday, December 5, from 5 to 7 p.m. On Thursday, December 10, at 6:30 p.m., the Whaling Museum hosts a Crafts & Cocktails cookie-decorating night. Meanwhile, the eggs taken in early November sit in the Hatch House, shielded from predators and sunlight, until they hatch in late December. The young trout stay there for about four months before moving to the rearing pools.

If you'd like to talk about a home near the Hatchery ponds or anywhere else around the harbor, I'm glad to share what I know about the area, including the water that gave the village its name. Laura Zambratto is happy to connect whenever you're ready.