Things to do nearCasco Bay

    Casco Bay is a storied coastal inlet off southern Maine, celebrated for its island-dotted waters, working lobster boats, and sweeping Atlantic views.

    Casco Bay stretches along the southern Maine coast, sheltering more than two hundred islands, ledges, and islets between Cape Small to the north and Cape Elizabeth to the south. The largest and most accessible of these, known collectively as the Calendar Islands, have supported fishing communities, summer colonies, and small farms for centuries. Indigenous Wabanaki people fished and traveled these waters long before European settlers arrived in the early seventeenth century, and the bay remained a vital commercial corridor through the age of sail and into the industrial era.

    Today Casco Bay is best experienced from the water. The Casco Bay Lines ferry service, one of the oldest continuously operating ferry systems in the United States, connects Portland to the inhabited islands of Peaks, Great Diamond, Little Diamond, Long, Chebeague, and Cliff. Each island has its own character, from the bicycle-friendly lanes of Peaks Island to the quieter coves of Cliff Island, where summer cottages sit among the spruce and birch.

    On shore, the bay shapes daily life in Portland in tangible ways. The working waterfront near the Old Port remains active with lobster boats, draggers, and pleasure craft, and the smell of salt and diesel is as much a part of the neighborhood as its cobblestone streets. Seafood pulled directly from these waters appears on menus across the city, with steamed clams, crab cakes, and freshly caught finfish reflecting the bay's continuing productivity.

    Casco Bay also draws sea kayakers, sailors, and wildlife watchers who come for the harbor seals, nesting seabirds, and the occasional minke whale spotted beyond the outer islands. For anyone drawn to working coastlines where natural beauty and maritime tradition exist side by side, Casco Bay offers an experience that is distinctly and irreplaceably Maine.

    Casco Bay, Maine, USA

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    Tips for visiting Casco Bay

    1

    Visit during late June or early September to enjoy calmer seas, fewer crowds, and the best light for photography along the bay.

    2

    Take the Casco Bay Lines mail boat run, which stops at six islands and gives you a genuine look at year-round island life without requiring an overnight stay.

    3

    Bring layers regardless of the season, as temperatures on the water can drop sharply even on warm summer afternoons.

    4

    Try a classic Maine lobster roll at one of the waterfront shacks near the Portland Old Port, just steps from the ferry terminal.

    5

    Arrive at the ferry dock early on weekends to secure a seat on the open upper deck, which offers unobstructed views of the bay and its islands.

    Top tours & experiences near Casco Bay

    Showing 25-40 of 40 results
    Portland Head Light & Casco Bay Lighthouse Cruise

    Portland Head Light & Casco Bay Lighthouse Cruise

    Cruise Casco Bay with a small group and see lighthouses, islands, and coastal wildlife

    5.0 • 453 reviews
    $209/ person
    Private Oyster Farm Boat Tour & Tasting in Yarmouth, Maine

    Private Oyster Farm Boat Tour & Tasting in Yarmouth, Maine

    Cruise Casco Bay, see oyster farming in action, and taste fresh oysters

    4.9 • 55 reviews
    Tour Mere Point Oyster Farm by Boat From Portland

    Tour Mere Point Oyster Farm by Boat From Portland

    Cruise Casco Bay to Mere Point Oyster Farm, with 6 oyster samples

    4.8 • 264 reviews
    $232/ person
    Cruise Casco Bay on a Portland RIB Boat Tour

    Cruise Casco Bay on a Portland RIB Boat Tour

    Ride a 14-passenger RIB through Casco Bay’s forts, lighthouses, and islands

    4.8 • 264 reviews
    $57/ person
    Cruise Casco Bay on a Portland Happy Hour Charter

    Cruise Casco Bay on a Portland Happy Hour Charter

    Relax on a 1.5-hour Casco Bay happy hour cruise for up to 12 guests

    4.9 • 35 reviews
    Cruise Casco Bay at Sunset From Portland

    Cruise Casco Bay at Sunset From Portland

    Relax on a Casco Bay sunset cruise with Portland views

    4.9 • 35 reviews
    Private 2-Hour Casco Bay Charter

    Private 2-Hour Casco Bay Charter

    Cruise Portland’s coast for islands, lighthouses, and waterfront views

    5.0 • 4 reviews
    Sunrise Cruise on Casco Bay

    Sunrise Cruise on Casco Bay

    A private early-morning escape among Casco Bay islands

    5.0 • 4 reviews
    Cruise Casco Bay at Sunset From Portland

    Cruise Casco Bay at Sunset From Portland

    Cruise Casco Bay at sunset on a classic Maine-built powerboat

    5.0 • 453 reviews
    $149/ person
    Take a 3-Hour Sea Kayaking Lesson in Portland

    Take a 3-Hour Sea Kayaking Lesson in Portland

    Build Part I skills and practice an open-water crossing in Casco Bay

    4.9 • 939 reviews
    $85/ person
    Practice Sea Kayak Rescues in Portland, Maine

    Practice Sea Kayak Rescues in Portland, Maine

    Learn capsize recovery skills in a 3-hour sea kayak lesson

    4.9 • 939 reviews
    $90/ person
    Learn Sea Kayaking Basics in Portland 3-Hour Class

    Learn Sea Kayaking Basics in Portland 3-Hour Class

    Build sea kayaking skills in a small-group lesson on Casco Bay

    4.9 • 939 reviews
    $85/ person
    Cruise Casco Bay on a Mimosa Charter From Portland

    Cruise Casco Bay on a Mimosa Charter From Portland

    1.5-hour Casco Bay mimosa cruise for up to 12 guests

    4.9 • 35 reviews
    Race A Kayak Or Paddleboard In Portland

    Race A Kayak Or Paddleboard In Portland

    Join a Monday evening kayak or paddleboard race at East End Beach

    4.9 • 939 reviews
    $13/ person
    10-Hour Kayak & Paddleboard Rental in Portland

    10-Hour Kayak & Paddleboard Rental in Portland

    Choose your craft and explore Casco Bay from Portland’s waterfront

    4.9 • 939 reviews
    $58/ rental
    Portland 5-Hour Kayak & SUP Rental

    Portland 5-Hour Kayak & SUP Rental

    Paddle Portland’s East End waterfront by kayak or stand-up paddleboard

    4.9 • 939 reviews
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