Jack Block Park is a 15-acre (6.1 ha) park in the West Seattle
neighborhood of Seattle, Washington
, USA. Situated on the northwest corner of the Port of Seattle
's Terminal 5, the park offers public beach access, a children's play area, and a 45-foot (14 m) observation tower.The site of the park was previously occupied by a wood treatment plant and a shipbuilding facility, and the area was contaminated with creosote and designated a Superfund site by the U.S. Environmental Protection Agency in 1994.The park features a walking path along the Shoreline
, which passes by a play area and a walkable pier before terminating at the park's observation tower.