A whole string of these waterfront towns repays anyone willing to slow way down. Located in the southern part of Whidbey Island in Island County, Langley is a different experience from Coupeville, even though both towns share the same island. Coupeville is located on central Whidbey Island in Island County, and it holds the distinction of being one of the oldest towns in the state. Waterfront Park provides a relaxing green space right along the inlet with picnic areas and views across to the Bremerton shipyards. Bremerton rewards travelers who come with curiosity, because the more you look, the more this working waterfront town quietly reveals its fascinating and layered character.