Boating & Water Access in Seabrook, NH

Eastman's Docks — Seabrook's Own Fishing Fleet, Marking 80 Years in 2026

Eastman's Docks, at 5 River St. on the Seabrook Beach side of the harbor, is a genuinely Seabrook business — family-run since 1946 and now marketing itself directly as "celebrating 80 years of fishing & fun, 1946-2026." The fleet is seven diesel-powered, Coast Guard-certified fiberglass vessels running full-day and marathon deep-sea trips for haddock and pollock from April through late December, plus half-day and night trips for mackerel, striped bass, and bluefish. Current posted regulations at the docks run 17 inches and 15 fish per person for haddock, and 23 inches and a single fish per person for cod in season — worth checking directly before a trip, since limits shift year to year.

Beyond straight fishing, Eastman's runs public and private whale watches, Wednesday-evening fireworks-viewing cruises through July and August, and scenic cruise charters onto the Merrimack River and out to the Isles of Shoals, some paired with onboard DJ dancing. Specialty charters cover bachelor parties, birthdays, weddings, and corporate events, with private and six-pack charter pricing published separately and capacity running up to about 150 people depending on the trip. The on-site seasonal restaurant, Tuna Striker Pub & Dining, runs April through mid-October, and customer parking is free. The tackle shop keeps long daily hours (5 a.m. to 6 p.m. most days, 5 a.m. to 7 p.m. Wednesdays), shortening to 7 a.m. to 4 p.m. on weather-cancellation days. Call (603) 474-3461 or check the current fishing reports and schedule directly before booking, since fares and sailings move with the season.

The Yankee Fishermen's Cooperative — a Working Dock the Public Can Actually Buy From

A short way down Ocean Boulevard from the beach, the Yankee Fishermen's Cooperative at 725 Ocean Boulevard is Seabrook's other real waterfront anchor, and a genuinely different kind of business than Eastman's charter-and-tour model. Established more than 30 years ago as a fisherman-owned facility, it describes itself as one of the few working cooperatives of its kind left in New England — a shared dock providing fuel, ice, and offloading services to local commercial boats, alongside a retail seafood market open to the public selling lobster, haddock, tuna, and whatever else the boats bring in that day.

For a boater or visitor, the practical distinction matters: this is a commercial fishing dock supporting Seabrook's working fleet, not a place to tie up a recreational boat or rent a slip. Its real value to anyone interested in Seabrook's water access is as the town's other tangible piece of working waterfront, and as the closest thing Seabrook has to a dockside seafood market selling boats' actual catch rather than a restaurant plate.

The Harbor Got a Real Depth Fix: Hampton-Seabrook Harbor's 2019-2020 Dredging

By 2019, decades of natural shoaling had left parts of Hampton-Seabrook Harbor dangerously shallow — some stretches down to as little as one foot of water at low tide, according to the Army Corps of Engineers, a genuine navigation hazard for the commercial and recreational fleet sharing the harbor. Funding came through the bipartisan America's Water Infrastructure Act of 2018, with Senators Jeanne Shaheen and Maggie Hassan announcing the roughly $4.6 million federal emergency-dredging project at a December 2018 event held at the Yankee Fishermen's Cooperative itself.

Dredging began in earnest around October 2019 and wrapped up by January 2020, with contractor H&L Contracting hydraulically removing about 170,000 cubic yards of sand from seven separate entrance channels, cross channels, and anchorages, restoring depths of roughly six to eight feet. Rather than trucking the sand away or dumping it offshore, the project pumped the dredged material directly onto adjacent Hampton and Seabrook beaches — a real two-for-one fix that restored both the channel and the beach at the same time. As with every small tidal harbor on this stretch of coast, the fix isn't permanent: shoaling is a natural, ongoing process, and boaters keeping a vessel here long-term should expect the harbor to need dredging again eventually, not treat this project as a one-time solved problem.

The Bridge Overhead: The Neil R. Underwood Bridge Is Mid-Rebuild Through 2028

Every boat leaving Hampton-Seabrook Harbor for the open Atlantic passes directly under the Neil R. Underwood Memorial Bridge, which carries Route 1A over the harbor inlet between Seabrook and Hampton. The original 1949 span had landed on New Hampshire's own "Red List" of structurally deficient bridges, and a $107 million replacement project broke ground in 2024. State transportation officials' own July 2026 update put the project at roughly the halfway mark and on budget, with about $70 million spent so far.

The new 1,300-foot span is being built with two 11-foot travel lanes, 8-foot shoulders, and two 6-foot sidewalks, plus about 48 feet of vertical clearance intended to keep clearing "all regular maritime users" passing beneath it — along with a new pedestrian walkway connecting Hampton Beach State Park to the Hampton State Pier under the bridge itself. The new structure is expected to open to traffic in fall 2026, though the full project, including demolition of the old span, isn't targeted for completion until June 2028. For anyone boating out of Seabrook over the next couple of seasons, that means construction equipment, barges, and staging activity should be expected around the harbor mouth — check current conditions with the harbormaster or the New Hampshire Department of Transportation's own project page before transiting under the bridge.

Boat Launches, Moorings, and Getting on the Water Without a Boat

For trailered boats, the practical launch point serving the shared harbor is the state-run ramp on Route 1A South in Hampton — open 24 hours, fee charged, with a handicap-accessible restroom and dock, per New Hampshire Fish and Game (603-271-3511). Seabrook's own frontage on the harbor is mostly beach and marsh rather than a dedicated trailer ramp, so this Hampton-side launch is the one most Seabrook-area boaters actually use. On the Seabrook side itself, a public boat-launch and kayak-access point near the village offers sandy beach access, a ramp, restrooms, a dock, and a parking lot that reportedly fills on summer weekends; the water there is calm and sheltered, running roughly three to eight feet in the main channels, and best suited to kayaks, canoes, paddleboards, and small craft, particularly June through August around high tide.

Moorings anywhere in Hampton-Seabrook Harbor are assigned by the New Hampshire Division of Ports and Harbors (portofnh.org) through an application process under the agency's own Administrative Rule Pda 500, with an active waitlist for spots. Permits run April 1 through March 31 and must be renewed by March 1 each year, with a mooring fee schedule updated effective April 1, 2026. Chief Harbormaster Adam Winkler can be reached directly at (603) 436-8500 for current mooring availability and waitlist status, since online listings don't show real-time openings. For paddlers, the same tidal Blackwater River that runs past Seabrook Station itself — genuinely visible across the marsh from the plant — connects directly into the Hampton River and the broader Hampton-Seabrook estuary shared with Hampton Beach.

No Real Slips at Seabrook or Hampton — Where to Go for a Longer Stay

The New Hampshire Division of Ports and Harbors is direct about one limitation: it states plainly that no long-term or overnight berthing is available at Hampton or Rye harbors because of physical limitations, and that berths and slips in its own system exist only at Portsmouth. That means a boater who needs an actual slip rather than a mooring, a fuel stop, or a short tie-up has to look north to Portsmouth-area facilities or elsewhere on the Piscataqua, not to Seabrook or the harbor it shares with Hampton. Treat Hampton-Seabrook Harbor as exactly what it is — a working fishing and small-craft harbor with moorings and a launch ramp, not a marina destination for a boat that needs to stay tied up long-term.

What This Means If You're on the Water at Seabrook

The honest summary: Seabrook's water access runs through a shared, working harbor rather than a private marina of its own, anchored by two genuinely Seabrook businesses — Eastman's Docks, marking 80 years of deep-sea fishing, whale watching, and charter cruises in 2026, and the Yankee Fishermen's Cooperative, a fisherman-owned dock and seafood market more than three decades old. The harbor itself got a real fix in 2019-2020, when emergency dredging pulled roughly 170,000 cubic yards of shoaled sand out of seven channels and anchorages and used it to rebuild adjacent beaches. Right now, every boat leaving the harbor passes beneath a bridge mid-replacement, a $107 million, multi-year project not expected to fully wrap until 2028. Moorings run through a waitlist-based state permit system, launch access leans on a Hampton-side ramp, and nobody offers a real long-term slip in Seabrook or Hampton at all — that requires a trip up to Portsmouth.

What this page deliberately doesn't do is invent current mooring wait times, guess at charter pricing beyond what's published, or predict exactly how bridge construction will affect harbor traffic week to week. Call the harbormaster's office at (603) 436-8500 for moorings, call Eastman's Docks at (603) 474-3461 for charters and fares, and check the New Hampshire Department of Transportation's own project page for the Underwood Bridge before planning around this harbor's current, actively changing conditions.