Hart-Miller Island State Park

Hart-Miller Island State Park

Hart-Miller Island is a 1,100-acre island located in Baltimore County on the Chesapeake Bay near the mouth of Middle River. It is accessible only by personal boat. The western shore of the island offers safe mooring, wading and access to a 3,000-foot sandy beach. Hart-Miller Island State Park also includes Hawk Cove and Pleasure Island, which also provide recreational opportunities and camping.

On May 7, 2016, the south cell of Hart-Miller Island officially opened for public access for the first time since construction began on the dike in 1981.

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Image Credit: Stephen Badger / Maryland DNR


8 a.m. to Sunset
Certain activities are permitted outside of the regular park hours (e.g. fishing, boat launch, hunting where permitted). Please check with the park before your visit if you plan to engage in an activity which requires you to be in the park before or after the posted hours. 

Camping is available from May 1-September 30.

(Note: Many places fill to capacity on busy, nice weather days, especially holiday weekends. Please call ahead or visit the official website to get the most up-to-date information before visiting.)


A campsite is $6 service charge per site with a maximum 6 people per site.


Campsites, fishing, bird-watching, hiking trails, picnicking, swimming, and bicycling.

Camping is available from May through September on a first come, first served only basis. Access is only by private boat. The service charge for each campsite is $6.

Water Flow Info:


Water supply and restrooms are available at the main camping area on Hart-Miller Island; however, these facilities are only available May through September.

The south cell will be open and staffed Thursdays through Mondays from 11 a.m. to 4 p.m. Along with regular day use amenities, boaters and beach-goers can now rent bicycles to ride around the south cell. Visitors will be able to take binoculars and bird guides to explore the many species of birds that migrate to the island. Staff on the island will also have light concessions for sale such as sodas and snacks. 

Camping is available from May 1-September 30. Hart-Miller Island State Park offers 22 campsites available on a first-come, first-serve basis.


Alcohol is prohibited in all areas of Hart-Miller Island, Hawk Cove and Pleasure Island.


Leashed pets are allowed on Hart-Miller Island State Park.


Originally part of a peninsula that extended from Edgemere, the two islands, Hart and Miller were joined by the construction of a dike in 1981. Until 2012, the impoundment was filled with dredge material from the Baltimore Harbor and surrounding tributaries. In recent years, Hart-Miller Island has become a recreational haven for boaters in the northern Chesapeake Bay.


Last updated: September 19, 2019