U.S. Mailboat Cruises

The oldest floating post office in the United States.

Catch a glimpse of lake life that can't be seen from the M/S Mount Washington. The U.S. Mailboat navigates smaller channels and waterways to provide postal service to the island residents of Lake Winnipesaukee. On each of her two daily mail runs, she'll visit a number of different islands, and the Skipper will point out areas of interest along the way. In addition to postal service, She also has a collection of ice cream treats for sale. A daily visit to the dock for a snack is a summer tradition for many of her island friends. Passengers aboard the Mailboat are invited to fill out postcards and mail them right on board, complete with a unique, collectible cancellation stamp!

Please Note: The M/V Sophie C. is currently offline for maintenance and will be replaced by the M/V Doris E. for all mailboat cruises.

U.S. Mailboat Cruise Schedule

Cruises Monday-Saturday from June 15 through September 14

Cruise 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


Purchase tickets at the Ticket Office located at Weirs Beach

(over 12)
(Ages 5-12)
Ages 4
and Under
2 Hour Mailboat Cruise $28 $14 Free  


  • Times listed in the cruise schedule are departure times. You should plan to arrive at the port 20-30 minutes prior to departure, to find parking, secure your tickets and and walk to the dock.
  • Metered parking and paid parking lots are available at Weirs Beach.
  • Mailboat tickets are non-refundable, however they are not date-specific and do not expire. If you are unable to cruise on your intended day, you may use your tickets for another day.

© 2019, Mount Washington Cruises
211 Lakeside Ave. Weirs Beach, Laconia, NH 03246