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Hiking in Mt Desert Island: trails, map and practical info

Down East & Acadia • Maine

4.8 Appreciated by 6 hikers
François Dumaine
By François DumaineContributor since 2022Updated 23/05/2026
Difficulty
Moderate
Distance
72 km
Elevation
455 ft
Duration
Variable by trail
Max altitude
466 ft

Explore 72 km of trails across Maine's largest island, where moderate difficulty routes lead from mountain summits to rocky shores. Mount Desert Island in Down East Acadia delivers the rare combination of East Coast's highest peak and dramatic coastal granite cliffs—all accessible by ferry from Bar Harbor.

Recommended for :
Intermediate hikers

Ready to explore Mt Desert Island? Here's everything you need to know before you go!

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Trail description

Description

Mount Desert Island stands as Maine's premier hiking destination, combining rugged coastal terrain with mountain peaks in a landscape unlike anywhere else on the East Coast. This massive island, the largest off Maine's coast, delivers an extraordinary range of hiking experiences within a relatively compact area, making it possible to summit a mountain in the morning and walk rocky shores by afternoon.

Acadia National Park: The Island's Crown Jewel

Acadia National Park covers much of Mount Desert Island and provides the framework for most hiking adventures here. The park's trail system spans over 150 miles, weaving through diverse terrain that shifts from dense spruce-fir forests to exposed granite ridges to pristine lakeshores. What sets these trails apart is their variety—you can choose anything from flat carriage roads perfect for families to steep, rocky scrambles that challenge experienced hikers.

The trail network here follows natural contours and historic routes, including the famous carriage roads built by John D. Rockefeller Jr. in the early 1900s. These gravel paths provide excellent hiking on gentler grades, while the hiking trails proper often follow more direct routes up mountainsides and along the coast. The carriage roads create a unique dual-trail system where you can often choose between a gradual approach and a more direct mountain route to the same destination.

Cadillac Mountain: The East Coast's Highest Peak

At 1,530 feet, Cadillac Mountain claims the distinction of being the tallest peak on the U.S. East Coast, and the hiking experience lives up to that status. The summit offers 360-degree views that stretch from the Atlantic Ocean to inland Maine's lakes and forests. On clear days, you can see all the way to Nova Scotia.

The sunrise experience from Cadillac Mountain has become legendary among hikers. As one of the first places in the United States to see daylight, the summit draws early risers who make the pre-dawn hike to witness the sun emerging from the Atlantic. The granite summit provides plenty of space to spread out and take in the spectacle, though expect company during peak season.

Multiple routes lead to Cadillac's summit, ranging from moderate climbs to more challenging approaches. The terrain typically involves hiking through mixed forests before emerging onto open granite slabs as you near the top. The transition from forest to exposed rock creates a dramatic shift in the hiking experience as views gradually open up.

Ocean Path Trail: Where Mountains Meet the Sea

The Ocean Path Trail showcases Mount Desert Island's most distinctive feature—the dramatic meeting of mountains and ocean. This trail follows the coastline between Sand Beach and Otter Point, staying close to the shore for nearly its entire length and offering constant ocean views.

Walking this trail means navigating along pink granite cliffs while waves crash below. The path itself rates as easy to moderate, with some rocky sections and gentle elevation changes. What makes this hike memorable isn't the physical challenge but the constantly changing coastal scenery. You'll pass Thunder Hole, where waves create booming sounds as they surge into a narrow inlet, and numerous viewpoints where you can watch the interplay of granite, forest, and sea.

The trail surface varies from smooth sections to areas where you're walking directly on granite slabs. The proximity to the ocean means conditions can change quickly—calm seas can become rough, and fog can roll in without warning, transforming the entire hiking experience.

Diverse Terrain and Trail Character

Mount Desert Island's geological foundation of pink granite creates a distinctive hiking environment. Many trails feature sections where you're walking directly on smooth granite surfaces, marked by cairns and painted blazes. This creates a unique hiking experience where the rock itself becomes the trail, offering excellent traction when dry but requiring caution when wet.

The island's forests consist primarily of spruce and fir, creating a classic Maine woods atmosphere with soft needle carpets underfoot and the distinctive scent of evergreens. These forested sections provide shelter from wind and weather, making them particularly pleasant during cooler months or windy days.

Elevation changes happen quickly on the island due to its compact size and dramatic topography. You might find yourself climbing steadily through forest, then suddenly emerging onto open ledges with sweeping views. This rapid transition between environments keeps the hiking experience engaging and provides frequent opportunities for rest and photography.

Wildlife and Natural Environments

Mount Desert Island's position between land and sea creates habitat diversity that supports an impressive range of wildlife. White-tailed deer are common throughout the island's forests and frequently seen along trails, especially during early morning and evening hikes. Peregrine falcons nest on the island's cliffs and can often be spotted soaring above coastal areas.

The coastline provides opportunities to observe marine life, particularly harbor seals that haul out on offshore rocks and ledges. During certain times of year, you might spot porpoises or even whales from elevated coastal viewpoints.

The island's varied habitats—from dense coniferous forests to open meadows to freshwater ponds—create excellent conditions for nature observation and photography. Each ecosystem supports different species, so hiking various trails increases your chances of diverse wildlife encounters.

Planning Your Mount Desert Island Adventure

Mount Desert Island accommodates both day hikers and those planning extended stays. The trail system's design allows you to combine different routes and difficulty levels depending on your time and energy. Many hikers find that spending several days on the island provides the best experience, allowing time to explore both mountain and coastal trails without rushing.

Trail conditions can vary significantly with weather and season, so checking current conditions before heading out proves essential. The granite surfaces common on many trails can become slippery when wet, and coastal trails may be affected by high winds or storms.

Essential gear includes plenty of water, as natural water sources are limited on many trails, and snacks or meals for longer hikes. Weather-appropriate clothing is crucial, especially on coastal trails where conditions can change rapidly. The combination of elevation and ocean exposure means temperatures and wind conditions can vary dramatically even within a single hike.

Ready to go?

Everything you need to know before you go

Where?

Address
Mt Desert Island, Maine, USA
GPS coordinates
44.3924341, -68.3021373
Phone
Not available

Starting Point

The best way to get to the start of the trails at the mt desert island is to take a ferry from Bar Harbor.

When?

Opening hours
From sunrise to sunset
Varies by season
Best season
Fall
Spectacular colors
Best time
Early morning
Less crowded
Weather (next days)
Loading

How much?

Entry fees
Adult
Not available
Child
What to bring?
Gear
  • Hiking shoes Essential
  • Layered clothing Essential
  • Rain jacket Essential
  • Trekking poles
  • Headlamp
Download the PDF checklist
Water & food
2L minimum
No water point on the trail
Bring energy snacks for a 4h+ hike
Good to know
Park rules
No dogs
Safety
Download the GPX before you go
Limited cellular coverage on the trail
Slippery after rain
Be careful on rocky sections
In an emergency
Emergency
911
Parking GPS
44.3924341, -68.3021373
Center
Not available

Hikers' opinions

4.8
5 Reviews
S
Sarah
Nov 14, 2025
Mt Desert Island offers an incredible outdoor experience with stunning coastal scenery throughout the 72 km network. The moderate difficulty rating is accurate, though the 455 m elevation gain keeps things interesting. The landscape diversity is remarkable, featuring rocky shores and forest trails. Be prepared for paid parking and entrance fees, which are necessary for trail maintenance. Highly recommended for experienced hikers seeking natural beauty.
M
Michael
Aug 27, 2025
Absolutely breathtaking hiking destination in Down East Maine. The combination of mountain terrain and ocean views creates unforgettable moments. Trail conditions are generally well-maintained despite the moderate difficulty. The 455 m elevation gain is manageable for most hikers. Note that dogs are not permitted on trails, and parking requires payment. Worth every penny for the spectacular Acadia region experience.
J
Jennifer
Jun 9, 2025
Mt Desert Island has beautiful scenery and varied terrain across its 72 km trail system. The moderate difficulty suits intermediate hikers well. However, the paid parking and entrance fees add significant costs to the visit. Some sections can be crowded during peak season. The landscape is genuinely impressive, but budget accordingly for access fees before planning your trip.
D
David
Mar 18, 2025
Excellent hiking destination with diverse trail options throughout Mt Desert Island. The 455 m elevation gain provides good physical challenge without being overwhelming. Scenic vistas reward your effort at multiple viewpoints. Trail maintenance is adequate for moderate-difficulty hiking. Remember that dogs aren't allowed and parking is paid. The Acadia region setting makes this a must-visit for outdoor enthusiasts.
E
Emily
Oct 5, 2024
Mt Desert Island delivers impressive natural beauty with well-marked trails spanning 72 km. The moderate difficulty and 455 m elevation gain make it accessible yet rewarding. Coastal views are spectacular, particularly during clear weather. The paid access system helps preserve trail quality. Definitely plan ahead for parking costs. A fantastic destination for serious hikers exploring Maine's Down East region.

FAQ - Frequently asked questions

Everything you need to know
Moderate
455.00 m
466.00 m
Variable by trail
No
No
The duration varies by trail, as Mt Desert Island offers multiple routes with different lengths and difficulty levels. Plan your visit based on which specific trails you want to explore and your fitness level.
Mt Desert Island trails are open from sunrise to sunset. Plan your hike accordingly and ensure you finish before dark.
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Hiking near Bar Harbor

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Update : June 2026