# Outermost Harbor Marine — Full Reference

> Full-service marina and boat-tour operator in Chatham, on the "elbow" of Cape Cod, Massachusetts. This is the detailed reference; the short version is at https://outermostharbor.com/llms.txt. Every price, hour and address below is current as of September 2026. Prices are base (cash) rates; card payments add a 3% non-cash adjustment shown at checkout.

## The business, in one paragraph

Outermost Harbor Marine is one company operating from two Chatham addresses. The marina — docks, fuel, slips, moorings, storage and the tour/charter fleet — is at 83 Seagull Road on Chatham Harbor. The Parts & Service department — engine work, repowers, electronics, winterization and a parts counter — is a separate shop about five minutes away at 157 Enterprise Drive. Both share one phone number, 508-945-2030. The tour-and-charter side also trades as "Outermost Adventures" and books online at https://book.outermostharbor.com. Founded 1998. Rated 4.7 on Google.

## Contact, hours and locations

- Marina, docks, fuel and tours: 83 Seagull Road, Chatham, MA 02633. Directions: https://www.google.com/maps/dir/?api=1&destination=83+Seagull+Road+Chatham+MA+02633
- Parts & Service shop: 157 Enterprise Drive, Chatham, MA 02633. A separate building from the marina.
- Phone: 508-945-2030 (press 2 for Parts & Service). This is the only phone number — never 508-945-0594.
- Email: boats@outermostharbor.com
- Marina hours, after Labor Day: Tuesday–Saturday 8:00 AM–4:30 PM; closed Sunday and Monday. Summer (Memorial Day–Labor Day): open daily 8:00 AM–5:00 PM.
- Parts & Service hours: Monday–Friday 8:00 AM–4:30 PM, year-round; closed weekends. (Service stays open Mondays even when the marina is closed Mondays in the fall.)
- VHF channel 80 monitored for transient dockage.

## Tours (scheduled, book online at book.outermostharbor.com)

- Chatham Seal Cruise: a one-hour narrated cruise inside Chatham Harbor to see hundreds of gray seals up close. Harbor-only — it does not go offshore and does not involve sharks. Departs daily May through October (daily through Labor Day, then Tuesday–Saturday in September and October), multiple departures between 9:00 AM and 3:00 PM. Adults $45, children $40, up to 12 guests per boat, minimum 5 guests to run. On-site parking $15 per car.
- Boat-to-Beach Shuttle: a boat ride from the marina out to North Beach Island, drop-off and pickup, so you spend the day on the outer beach. Adults $35, children $30 round trip, minimum 3. On-site parking $30 per car. Departures roughly hourly from 9:00 AM (last boat out just after 3:00 PM); return pickups hourly from 10:00 AM (last pickup 4:00 PM).
- Seal Cruise + Beach Combo: the narrated seal cruise plus a beach drop-off in one outing. Adults $60, children $55, minimum 5.
- Private Seal Cruise: your own boat and captain in Chatham Harbor, $600 per hour, up to 12 guests.

## Charters (private, request-based; a $200 card hold secures the date, captain confirms)

- Great White Shark Tour: a private 2.5-hour trip off Monomoy with a spotter plane helping locate great whites. $2,200 for the whole boat (up to 6 guests), or individual seats at $400 each on scheduled shared departures — a shared boat runs only once all six seats are committed. Season June–October, peak August–September. Parking at the marina is included.
- Private Whale Watching: your own boat for up to 6 guests, about 3 hours, $1,100. Humpback, fin and minke whales depending on season and conditions; sightings are never guaranteed. Chatham has no large public whale-watch boat — this is a private charter. Season June–October. Parking included.
- Monomoy & South Beach Seals (private): a private 2.5-hour run out to Monomoy and South Beach for up to 6 guests, from $700 (from $800 on the larger boat), June–October. This is a different, offshore trip from the harbor-only scheduled seal cruise.
- Striped Bass & Coastal Fishing: inshore fishing for striped bass, bluefish and fluke, up to 6 guests. 4-hour trips from $800, 6-hour from $1,000, 8-hour from $1,300 (price depends on boat and month). Bait, tackle and licenses included.
- Bluefin Tuna: offshore tuna charters, morning departures. Half day (about 5 hours) from $1,200, full day (about 10 hours) from $1,400.
- Guided Flats Fishing: guided flats and fly-fishing for striped bass.
- Fishing, shark and whale charters run in cooperation with Down East Charters, a partner captain operation departing from the same dock.

## Marina services

- Transient dockage: slips, moorings and dry rack for visiting boaters, boats up to 55 feet, at 83 Seagull Road (Stage Harbor side). One-night minimum. Per-night rates: slip up to 25′ $200, 26′–35′ $250, 36′–45′ $300, 46′ and up $350; mooring $150; dry rack $150. Ramp fee for haul and launch: $11 per foot each way. During published peak weeks (e.g. fishing tournament week), slips 26′ and over carry a minimum-night billing shown in the quote. Book at https://book.outermostharbor.com/dockage.
- Seasonal slips, moorings and racks: contact the marina directly.
- Boat service and outboard repair: factory-certified Yamaha and Mercury technicians at 157 Enterprise Drive. Yamaha Five Star and Mercury certified; NMEA electronics. Every boat coming in for service needs an online service request first: https://outermostharbor.com/boat-service-request/
- Repowers, electronics, fiberglass and gelcoat work, winterization.
- Fall service and winter storage: haul-out, full winterization, shrink wrap and heated-checks winter storage for boats up to 55 feet. Winter storage is priced by length: $40 per foot up to 27 feet, $65 per foot over 27 feet. Shrink wrap: $34/ft up to 23 ft, $38/ft for 24–27 ft, $43/ft for 28 ft and up. Haul-out, blocking and winterization are quoted with storage.
- New and brokerage boat sales: Cape Cod dealer for Scout, Intrepid, Key West and Contender; trade-ins and brokerage listings welcome.
- Gift certificates: $25 to $1,000, bought online, no expiration, redeemable toward any tour, charter or dockage: https://book.outermostharbor.com/gift-cards

## Policies and common questions

- Minimum age: none. Young children are welcome on the tours.
- Dogs: welcome on private seal charters only. Scheduled group tours (seal cruise, beach shuttle) are people only.
- Parking: everyone parks at the marina, 83 Seagull Road. Parking is included with private charters. The scheduled seal cruise ($15/car) and beach shuttle ($30/car) carry an on-site parking fee, paid at checkout.
- Restrooms: at the marina, not on the boats.
- Arrival: arrive 10–15 minutes before departure.
- Weather: if the marina cancels a trip for weather, you receive a full refund.
- Cancellations: 7 or more days ahead, full refund; within 7 days, reschedule within the same season.
- Are there sharks on the seal cruise? No. The seal cruise is harbor-only and does not involve sharks; the great white shark tour is a separate offshore charter.
- Accessibility: the dock is wheelchair accessible; call 508-945-2030 about boarding assistance.

## Water and conditions

- Live Chatham and Stage Harbor tide tables, water temperature and a webcam: https://outermostharbor.com/chatham-tides-weather/ and https://outermostharbor.com/current-local-conditions/webcam/