The oldest floating post office in the United States

U.S. Mailboat Cruises

Rated 4.5/5 based on 2000+ Reviews

Launched on Lake Winnipesaukee in 1945, the M/V Sophie C continues a long tradition of delivering postal mail to the lake's summer island residents. On each two hour cruise, she'll visit a number of different islands, while her Skipper points out areas of interest along the way.

On some islands Sophie's visit is the social event of the day, and island residents often come to the dock to say hello, and purchase an ice cream treat, snack or souvenir.

Don't forget to send a postcard home! Passengers are invited to fill out and mail postcards right on board, complete Sophie's own unique, collectible cancellation stamp!

Ticket Pricing

Adult (Ages 13+)$48
Child (Ages 4-12)$28
Baby (Under 4)FREE
Prices do not include taxes or service fees.

Cruise Schedule

The U.S. Mailboat Sophie C offers cruises from June 21 to September 12

Cruise Time Mail Stops
11:00 AM Loon Island, Bear Island, 3 Mile Island, East Bear Island
2:00 PM Camp Lawrence, Birch Island, Sandy Island, Cow Island, Jolly Island

Cruise Features

Glimpse of lake life

Learn about life on the lake, and travel out among the islands of West Winnipesaukee as you deliver the mail to island residents.

Postal Services

The Sophie C offers postcards that can be purchased and mailed right from the boat, with a collectible cancellation stamp all of her own.

snack bar

The Sophie C offers a variety of chips, snacks, candy and soft drinks, including a wide selection of ice cream novelty treats.

gift shop

Remember your visit with a memento of your trip. The Sophie C has a small gift shop including t-shirts, sweatshirts, and other souvenirs.