Cathleen Stone Island

Waterfront / Marina in Boston, MA. Wedding venue pricing, packages and fees.

Estimated cost: $39k–$45k est. total for 120 guests
Capacity: up to 280 guests
Services: Dinner

Cathleen Stone Island, formerly known as Thompson Island, is a 204-acre nature preserve in Boston Harbor that operates as a waterfront wedding venue. Guests arrive via a private charter ferry to access the island's outdoor spaces, which include the Ocean Bluff Gazebo, Gable Orchard, and two main reception areas. The Ocean Bluff Pavilion features a larger tent with arched entrances, vaulted ceilings, and inlaid floors alongside a smaller tent with French windowed walls, while the Waterfront Landing offers a wooden pavilion with exposed beams and high open eaves. Established as a farm and trade school in 1833, the island now provides overnight accommodations in a historic five-bedroom Colonial home. Receptions seat up to 280 guests, with packages including a choice of stationary displays and appetizers, hot beverage service, buffet entrees such as grilled chicken or salmon, and one hour of open bar.

Food

Buffet dinner packages include choice of stationary displays, stationary appetizers, salads, and various entrees (e.g., grilled chicken, hot dogs, burgers, sirloin, ribs, lobster, salmon) with sides. Optional dessert add-ons are available.

Packages

Dinner Buffet Packages: $225-$260 — based on buffet package selection (Backyard Cookout, Texas BBQ, Island Combo, Clambake)
Includes: Choice of 2 Stationary Displays, Choice of 4 Stationary Appetizers, One Hour of Open Bar (Beer, Wine, Assorted Sodas, Juice, Bottled Water), Buffet dinner (e.g., grilled chicken, hot dogs, burgers, salads, sides), Hot Beverage Service

Taxes and fees

Gratuity Charge: 8%
Island Support Fee: 14%
Massachusetts State Meal Tax: 7%
Private Charter Boat Admin Fee: 10%
China Handling Fee: $15 pp
Liquor License Fee: $100

Good to know

All weddings have a $25,000 minimum inclusive of venue, food, beverage, and ferry ride. Taxes, fees, gratuities and guest overnight accommodations do not apply to minimum.
Food and beverage selections are subject to an 8% gratuity charge, 14% island support fee, and 7% Massachusetts State Meal Tax.
All alcohol must be purchased through Cathleen Stone Island Outward Bound and served by Cathleen Stone Island Outward Bound employees.
All bars close 30 minutes prior to ferry departure.
Optional add-ons available: Assorted Mini Pastries ($15 pp), Assorted Pies ($10 pp), Ice Cream Sundae Bar ($8 pp), Champagne Toast ($10 pp), Amenity baskets ($50 per basket), Snacks and bottled water for overnight dorms ($7 pp), S’mores ($3.50 pp), Welcome bag placement ($5 per room).
Deposit amount is not explicitly stated due to a typo in the document.

Common questions

How much does a wedding at Cathleen Stone Island cost?

Based on Cathleen Stone Island's published pricing, a dinner reception for 120 guests comes to about $38,500–$45,000 in total, including the venue's own service charges, fees and tax. Your actual quote will depend on date, season, menu and final guest count.

How many guests can Cathleen Stone Island hold?

Cathleen Stone Island can host up to 280 guests seated.

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More: Wedding venues in Boston · Wedding venues in Massachusetts · Massachusetts wedding venue pricing report