Park activities include picnicking, camping, boating, fishing, hiking on 1.9 miles (3.1 km) of trails, birdwatching, volleyball, wildlife viewing, and horseshoes.

[2] Manchester State Park, originally called Middle Point Military Reservation, was used as a fortification with Fort Ward on Bainbridge Island to protect the Puget Sound Naval Shipyard in Bremerton during the early 1900s.

[2] Since Fort Ward could protect part of Puget Sound with its four coastal artillery batteries, the primary defensive tactic at Middle Point was the operation of a minefield in Rich Passage.

[9] Manchester State Park offers standard and RV campsites that are open year round, two picnic shelters, 1.9 miles (3.1 km) of hiking trails, public restrooms, and beach access.

Other activities include hiking, picnicking, birdwatching, volleyball, badminton, wildlife viewing, horseshoes, and mountain biking.