Temporary Road Closure
A section of the Western Mtn Road in Southwest Harbor will be closed until 8/18 while park crews replace a culvert with a new fish-friendly open bottom culvert. For more information and a map visit our Getting Around Page. More »
Trail Closure: Gorge Path weekdays, 7 am - 4 pm
The section of the Gorge Path between the Hemlock Path intersection and the A. Murray Young Trail intersection is closed until rehabilitation work is completed. The closure will be in effect Mondays through Fridays only, from 7 am to 4 pm.
Laws & Policies
Enabling Legislation and Public Laws
Park rangers enforce a number of federal regulations in the park, including the Code of Federal Regulations, Title 36 (36 CFR), and the United States Code, Titles 16, 18, and 21.
Within 36 CFR, park superintendents are granted the right to make park-specific regulations to maintain public health and safety, protect environmental or scenic values, protect natural and cultural resources, aid in scientific research, provide for equitable use of facilities, and avoid conflict among visitor use activities. These park-specific regulations are found in the Superintendent's Compendium. Included below is a partial list of park regulations.
It is illegal to be in the park when under the influence of alcohol or controlled substances. The possession of alcoholic beverages by a minor (less than 21 years old) is prohibited.
All motorized vehicles are prohibited on park trails and carriage roads. All-terrain vehicles are not allowed anywhere in the park.
Camping is permitted only in designated campsites at Blackwoods, Seawall, and Duck Harbor (Isle au Haut) Campgrounds. For complete camping regulations, click here.
The possession or use of fireworks or firecrackers is prohibited.
Fishing is permitted in accordance with State of Maine laws. For more information, see Fishing.
The use of horses and other pack animals is permitted on the certain trails, routes, and roads in the park. For more information, see Horseback Riding.
The park is open 24 hours a day. However, Bass Harbor Head Lighthouse closes to visitors and motor vehicles at dark, while Carroll Homestead, Lake Wood, and Thompson Island Picnic Area are closed to motor vehicles at dark.
Hunting and trapping are prohibited.
Roller skates, rollerblades, roller skis, skateboards, and any other coasting devices are permitted on roads closed to automobiles.
A number of islands in the park are closed at certain times of the year to protect nesting bird species. For more information, see Boating.
Parking is limited to specific areasin the park. For more information, click here.
Pets must be leashed (six feet or less) or otherwise physically restrained at all times. For more information, click here.
Permits are required for activities such as scientific research and collecting, commercial photography/filming, commercial tours and activities, etc. Please see the Superintendent's Compendiumfor a complete list of activities and events that require a permit.
The possession, injury, destruction, removal, or disturbance of park property or natural resources, including animals, plants, minerals, cultural, and archaeological objects is prohibited. This includes collecting rocks, cobbles, plants, marine organisms, other natural materials, and historic objects and artifacts.
RVs are permitted in the park, but some areas are not accessible due to low bridge heights or limited turnaround space. For more information, see Vehicle Restrictions.
Federal law requires that seat belts are worn when driving or riding as a passenger in a national park.
Snowmobiles are permitted in certain areas of the park.
Did You Know?
The Guide's Guide to Acadia National Park, originally created to share important information about the park's facilities and natural and cultural resources with commercial guides, is available to the public on this website. The guide contains everything you would want to know about the park. More...