Acadia National Park

Acadia National Park is the crown jewel of the Maine coast and the first national park east of the Mississippi — a spectacular landscape where pink granite mountains rise directly from the deep blue Atlantic, surf pounds rocky headlands, and forests, lakes and offshore islands fill out one of the most beloved parks in America, mostly on Mount Desert Island.

From the summit of Cadillac Mountain — among the first places in the United States to catch the sunrise — to the crashing surf at Thunder Hole, the cobble shore of Sand Beach, the carriage roads and stone bridges given by the Rockefellers, and the charming gateway town of Bar Harbor, Acadia packs astonishing variety into a compact, dramatic coast. Hiking, biking, paddling and leaf-peeping draw millions. A meeting of mountain and sea, Acadia is a treasured natural icon of Maine.

Acadia offers a wealth of recreation — hiking over 150 miles of trails (from the iconic Precipice and Beehive iron-rung climbs to gentle shore and pond paths), biking the 45 miles of historic carriage roads, driving the Park Loop Road to Thunder Hole, Sand Beach and Jordan Pond, paddling the lakes and the sea, climbing the granite, watching for whales and wildlife, and catching the sunrise atop Cadillac Mountain. Hiking the granite peaks, biking the carriage roads and watching the sunrise from Cadillac are the signature draws of this spectacular coastal park.

Summer and early fall are the prime seasons — summer brings warm weather and full services (and the largest crowds, plus a vehicle reservation for Cadillac’s summit road), while September and early October bring spectacular fall foliage, crisp air and thinning crowds. Spring is quiet and muddy; winter is snowy and serene with reduced services. Mornings are best for the sunrise and to beat crowds. Late summer and fall are the highlights — come for the foliage and fewer people, reserve Cadillac sunrise access, and start early.

The Mount Desert Island region is the homeland of the Wabanaki peoples, who summered on its shores for thousands of years. In the late 1800s it became a fashionable summer retreat for wealthy ‘rusticators,’ and conservationists like George B. Dorr and John D. Rockefeller Jr. donated land (and Rockefeller built the famous carriage roads) to create the park — established as Sieur de Monts National Monument in 1916 and Acadia National Park in 1919, the first national park east of the Mississippi. Acadia preserves this dramatic coast, its carriage roads and its heritage, a treasured icon of Maine.

Acadia’s landscape is built largely of pink granite that cooled deep underground and was later uplifted and exposed. During the Ice Age, massive glaciers scoured and rounded the mountains, carved the U-shaped valley now filled by Somes Sound (often called the only fjord-like feature on the East Coast), gouged the lake basins, and left erratics like Bubble Rock perched on the heights. The sea then drowned the lower land, creating the islands and rocky shore. The granite, the glacial sculpting and the rising sea created Acadia’s mountains-meet-ocean landscape.

Acadia’s forests, shores and waters host white-tailed deer, red foxes, beavers, harbor seals and porpoises offshore, and a rich birdlife — peregrine falcons nesting on the cliffs (the Precipice trail closes for them), warblers and woodpeckers in the forest, seabirds along the coast, and the famous Atlantic puffins on nearby islands — while whales (humpback, finback) feed in the Gulf of Maine. The meeting of land and sea supports abundant wildlife. Acadia offers superb wildlife watching, from peregrine falcons and seals to whale-watching cruises and puffin tours offshore.

Acadia protects a rich meeting of ecosystems — spruce-fir and hardwood forests, granite summits with subalpine plants, freshwater lakes and ponds, bogs and wetlands, and the rocky intertidal shore and cold marine waters of the Gulf of Maine, supporting great biodiversity. The intertidal zone and the cold, productive sea are especially rich. The compact park packs many habitats together, sensitive to heavy use and a changing climate. Protecting the forests, the shore, the waters and the wildlife sustains both the ecology and the beauty of this mountains-and-sea park.

Acadia National Park holds a treasured place among America’s natural icons — the crown jewel of the Maine coast and the first national park east of the Mississippi, beloved for its granite mountains rising from the Atlantic, its historic carriage roads, and the first U.S. sunrise atop Cadillac Mountain, on land that is the ancestral home of the Wabanaki peoples and was given by visionary conservationists. Acadia embodies the rugged beauty of the New England coast and is a cherished icon of Maine.

Acadia National Park is on the Maine coast, mostly on Mount Desert Island near the town of Bar Harbor, reached via State Route 3 off U.S. 1, about three hours from Portland (Bangor has the nearest airport). An entrance fee (pass) applies, and a vehicle reservation is required to drive to the Cadillac Mountain summit. The free Island Explorer shuttle serves the park and town in season. The park has visitor centers, the Park Loop Road, campgrounds, trails and carriage roads. Check the National Park Service for fees, the Cadillac reservation, shuttle and conditions before visiting.

The National Park Service protects Acadia’s mountains, shore and waters. Visitors help by staying on trails to protect the fragile granite-summit plants and soils, respecting trail closures for nesting peregrine falcons, keeping a safe distance from wildlife and seals, not disturbing tide pools, biking only on permitted carriage roads, packing out everything, using the shuttle to ease congestion, and following all rules. The summit plants, the cliff-nesting falcons and the intertidal life are sensitive. Protecting them sustains both the ecology and the beauty of Acadia.

Acadia’s coast and mountains carry real hazards — the iron-rung climbs (Precipice, Beehive) are exposed and dangerous (skip them if you fear heights or in wet conditions), the surf and slippery rocks at the shore (Thunder Hole, the cliffs) can sweep people in (never turn your back on the waves), and the granite is slick when wet. Mountain and sea weather change fast; carry layers and water. Cold ocean water is dangerous. Watch tides on the shore. Respect the exposed climbs, the powerful surf and slippery rocks, the cold water and the changeable weather.

An entrance fee (pass) applies, and a vehicle reservation is required for the Cadillac Mountain summit road — reserve ahead. Stay on trails; respect peregrine-falcon closures. Camp only in designated campgrounds (reservations needed). Bikes are allowed on carriage roads (not most hiking trails). Pets must be leashed (and are restricted from some areas). Drones are prohibited. Do not disturb tide pools or wildlife. Pack out all trash. Use the Island Explorer shuttle where possible. Check the National Park Service for fees, reservations and current rules before visiting.

The gateway town of Bar Harbor with its shops, restaurants and whale-watching and puffin tours, the quieter villages of Mount Desert Island, the Schoodic Peninsula (a quiet part of the park on the mainland), the islands of Frenchman Bay, and the Down East Maine coast lie near the park. The Gulf of Maine and Mount Desert Island define the region. Acadia anchors the Maine coast, a centerpiece of a New England adventure, easily combined with Bar Harbor, whale and puffin tours, the Schoodic Peninsula and the Down East coast.

Reserve a Cadillac Mountain summit vehicle pass to catch one of the first sunrises in the U.S., and use the free Island Explorer shuttle to skip parking headaches. Drive the Park Loop Road to Thunder Hole, Sand Beach and Jordan Pond (have popovers at the Jordan Pond House), bike the carriage roads, and hike a granite peak — the daring can try the Precipice or Beehive iron-rung climbs (not for those afraid of heights). Come in September for foliage and fewer crowds, start early, and take a whale or puffin tour from Bar Harbor.