Acadia
Acadia National Park protects the natural beauty of the highest rocky headlands along the Atlantic coastline of the United States, an abundance of habitats, and a rich cultural heritage. At 4 million visits a year, it's one of the top 10 most-visited national parks in the United States. Visitors enjoy 27 miles of historic motor roads, 158 miles of hiking trails, and 45 miles of carriage roads.
Official-source overview · detailed planning coverage is still being reviewed
At a glance
- State / territory
- Maine
- Region
- Northeast
The official overview below is available now. Park-specific fees, distances, climate tables, and reviewed day plans are shown only when their supporting records have been reviewed. Check current access and arrangements with the park before travel.
Plan this visit
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When to go
Located on Mount Desert Island in Maine, Acadia experiences all four seasons. Summer temperatures range from 45-90F (7-30C). Fall temperatures range from 30-70F (-1-21C). Typically the first frost is in mid-October and first snowfall begins in November and can continue through April with an average accumulation of 73 inches (185 cm). Winter temperatures range from 14-35F (-10 - 2C). Spring temperatures range from 30-70F (-1-21C).
General official weather guidance; historical context, not a forecast.
Arrive and stay
From Boston take I-95 north to Augusta, Maine, then Route 3 east to Ellsworth, and on to Mount Desert Island. For an alternate route, continue on I-95 north to Bangor, Maine, then take I-395 to U.S. Route 1A east to Ellsworth. In Ellsworth, take Route 3 to Mount Desert Island.
Official directionsRisks and official checks
Conditions, access, reservations, and operating hours can change. This website is a planning resource and does not provide live conditions.
Official park informationSources and your trip kit
Where this information comes from
Park overview information is drawn from identified official sources. Published guide facts, assumptions, and editorial decisions retain their own review records.
Source retrieved: 2026-10-01. This is not a live-conditions check.
Image credit: NPS Photo / Kent Miller. See the image credits.
Data release 0 · Independent planning resource. Not affiliated with the National Park Service.