Say "I do" on a harbor island
Ceremony under the trees, reception by the water, the skyline behind you all night. One wedding a day.
Your day
2027 packages
Price per guest. Every package includes your buffet, two stationary displays, four stationary appetizers and an hour of open bar. Taxes, fees and gratuity are extra.
Burgers · hot dogs · grilled chicken · veggie burgers · quinoa salad · corn · tomato platter · chips · watermelon
Beef chili · sirloin carving station · baby back ribs · grilled chicken · vegetarian lasagna · corn · potatoes · cornbread
Lobster tail or seared salmon · clam chowder · sirloin carving station · grilled chicken · vegetarian lasagna · corn · potatoes
Clam chowder · steamed littlenecks · 1½ lb Maine lobster · grilled chicken · vegetarian lasagna · corn · potatoes
Choose your displays and appetizers from the full menu. Popular additions:
Pricing basics
$15,000 in May and October, $25,000 from June to September. Your package, venue and guest boat count toward it.
Half is due six months out and the rest 14 business days before the wedding.
Your venue and its lawns are private to your celebration, with a private guest boat. The last boat back leaves at 10 PM.
Food and drink carry 7% Massachusetts meals tax, 9% gratuity and a 14% Island Support Fee, and bars serving alcohol a $100 liquor license fee. Boats, ferry or charter, carry a 10% transportation fee. Taxes, fees, gratuity and overnight stays don’t count toward the minimum.
Weddings in May and October have a $15,000 minimum instead of $25,000, with the same packages and venues.


Stay the night
2027 rates, subject to additional taxes and fees.
See where to stay →Your venue and its lawns are reserved for your wedding guests, and you’ll be the only wedding that day. Another event or a student group may use other parts of the island.
From our couples
"Getting married on Cathleen Stone Island was nothing short of perfect! We worked with Denise and Mary Kate, who were so organized, so efficient, so attentive to detail, and so patient. For a bride and groom who didn't want to be too burdened by details, it was really easy, because they organized and communicated everything with us and our vendors.
The venue is so naturally beautiful, and the ceremony and reception venues are unmatched, with views of Boston in the background. Highly recommend this venue for a couple who doesn't want to be totally traditional and who loves the natural beauty of the great outdoors!"
Start planning
Pick your event type and tell us your date and guest count. We reply within 24 hours.