Fort Flagler State Park

Fort Flagler State Park is a Washington state park on the site of Fort Flagler, a former United States Army fort at the northern end of Marrowstone Island.

Fort Flagler was a Coast Artillery fort. It was established in 1897 and activated on in 1899. The post was named for Brigadier General Daniel Webster Flagler, an American Civil War veteran who served as the Army's Chief of Ordnance. The fort was closed in June 1953.

From Fort Flagler State Park, visitors can see Port Townsend to the northwest, the cranes at the Navy base on Indian Island to the west, and Whidbey Island eastward across Admiralty Inlet. Flagler Road (SR 116) terminates inside the park.

Amenities and activities
Fort Flagler has hiking and biking trails, individual campsites suitable for cars, two group campsites, two boat launches, and several historical buildings where visitors can stay - the Hospital Steward's House, the Waterway House, and the North and South Non-Commissioned Officers' Quarters.

The park's museum features exhibits about the history of the fort. Guided tours of the historic fort buildings can be arranged in advance.

From 1958 to 1989 it was home to the Seattle Youth Symphony's Pacific Northwest Music Camp and Marrowstone Music Festival every August. A film "1812 Overture" was filmed on location there in 1974.

Every August, the Kamiak Show Band holds its annual "band camp," during which band members learn new music, prepare for the upcoming marching band season, and rehearse in sessions enjoyed by members of the visiting public.

Newport High School (Bellevue, Washington) also holds a cross-country camp at Fort Flagler for one week during the summer.

Eastside Catholic High School juniors and seniors take a trip to Fort Flagler for the Destiny retreat.

Seattle Girls Choir has their annual "Choir Camp" during the first weekend in August. This is a time for all three of the upper level choirs to have intensive music instruction in an environment that is fun and enjoyable

United Methodist Youth from the Seattle/Tacoma district enjoy a weekend retreat there in mid-late fall.

The neo-pagan Aquarian Tabernacle Church performs a modern Eleusinian Mysteries play here over Easter weekend each year.