Washington State Route 104 is a state highway located in the western part of Washington. It runs approximately 25 miles, connecting the cities of Kingston and Edmonds. The route primarily serves as a vital link across the Puget Sound, facilitating travel between the Olympic Peninsula and the Seattle metropolitan area. The highway features a mix of scenic views, including waterfront areas and forested landscapes. It also includes the Edmonds-Kingston Ferry, which provides a crucial transportation option for commuters and travelers. Overall, SR 104 plays an essential role in the regional transportation network.