Manchester State Park is a 111 acres (44.9 ha) state park

State park

State parks are parks or other protected areas managed at the federated state level within those nations which use "state" as a political subdivision. State parks are typically established by a state to preserve a location on account of its natural beauty, historic interest, or recreational...

 with 3400 feet (1,036.3 m) of shoreline, located on Washington's Kitsap Peninsula

Kitsap Peninsula

The Kitsap Peninsula is an arm of land that is part of the larger Olympic Peninsula in Washington state that lies west of Seattle across Puget Sound. Hood Canal separates Kitsap Peninsula from the rest of the Olympic Peninsula...

. It was at one time a harbor defense installation for the protection of nearby Bremerton

Bremerton, Washington

Bremerton is a city in Kitsap County, Washington, United States. The population was 38,790 at the 2011 State Estimate, making it the largest city on the Olympic Peninsula. Bremerton is home to Puget Sound Naval Shipyard and the Bremerton Annex of Naval Base Kitsap...

, then a fuel supply depot and Navy fire-fighting station. The park contains a former torpedo

Torpedo

The modern torpedo is a self-propelled missile weapon with an explosive warhead, launched above or below the water surface, propelled underwater towards a target, and designed to detonate either on contact with it or in proximity to it.The term torpedo was originally employed for...

warehouse built in 1901, a mining casement and a gun battery.