CHATHAM BOAT TOUR FIELD GUIDE
Monomoy Up Close: Seal Haul-outs, Narrow Channels and the Rare Glimpse of a Great White
A 2–4 hour, family-friendly cruise from Chatham-area harbors that guides you through Monomoy’s lagoons to see seals, seabirds and occasional large predators—this guide explains what to expect and what to bring.
Monomoy Up Close: Seal Haul-outs, Narrow Channels and the Rare Glimpse of a Great White.
You’ll glide through narrow channels and into isolated lagoons around Monomoy, where hundreds of seals haul out on shore and seabirds wheel overhead. The ride is intimate and marine-focused—keep your eyes on the water: sightings of a great white are rare but possible, and the trip is presented as a comfortable ocean outing for the whole family.
Highlights
Outing Highlights
Hundreds of Seals at Close Range
The cruise takes you into lagoons and along shorelines where seals swim and lie out by the hundreds—an opportunity for close observation of their behavior in a protected setting.
Seabird Activity in Natural Habitat
Expect to encounter a variety of seabirds across the channels and lagoons; the trip emphasizes wildlife viewing beyond just pinnipeds.
A Rare Window for Large‑Predator Sightings
Although uncommon, there is a documented chance of seeing a great white in the area, adding an edge of unpredictability to an otherwise family-oriented cruise.
What the day feels like
What the Cruise Feels Like
The outing is a steady coastal cruise that moves from harbor out into narrow channels and tucked-in lagoons. Boats slip close to sheltered shores where seals gather, while the operator points out seabird concentrations and keeps an eye on the surrounding water for rarer visitors such as large sharks. The overall tone is relaxed and marine-focused—designed to be accessible to families.
Suitability
Who it's for
Who this trip suits — and who should plan differently.
Practical planner
Details to review before reserving
Dress for the weather and bring camera, sunglasses, sunscreen, hat, food and beverages, closed‑toed shoes and a cooler if you plan to bring fish home. Avoid glass bottles.
Review cancellation policies before reserving.
Frequently asked questions
Planning Your Outing
How long is the cruise?
Trips run approximately 2–4 hours.
Where do we depart from?
Departures are from Sesuit Harbor (Dennis) in April–June and from Saquatucket Harbor (Harwich) from mid‑June through November.
How many people can go on one trip?
The operator accommodates up to six people per trip.
Is this suitable for children?
Yes: the cruise is described as appropriate for all ages and is promoted as a family outing.
What wildlife will we see?
Expect to see hundreds of seals in haul‑outs and a variety of seabirds; sightings of a great white shark have been reported but are rare.
Are there any onboard rules I should know?
Do not bring glass bottles; the captain reserves the right to return to dock if a passenger becomes too intoxicated.