The Duck Harbor campground opens on June 19
Make reservations starting on April 1 at Recreation.gov
Backcountry camping is prohibited

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  • Know Before You Go Aboard the Mailboat

    • Winter 2025 - 2026 Schedule & Rates Tues October 14, 2025 through May 16, 2026

    Summer & Fall 2025 Season Schedule & Rates (beginning May 19, ending on Mon October 13, 2025)


    Scheduled Extra Sunday Trips

    Lv Stonington: 11:30 am, Lv Isle au Haut: 12:30 pm

    Sunday, November 30, 2025
    Sunday, December 14, 2025
    Sunday, March 29, 2026
    Sunday, April 26, 2026

    Special Holiday Schedules:

    MLK Day: 1/19/2026, normal Monday schedule
    Pres Day: 2/17/2026, normal Monday schedule