Double Bluff County Park

WDFW Beach Season Information

Clam, mussel, and oyster seasons OPEN for harvest year-round.

WDFW shellfish seasons indicate the specific times of year when harvesting is permitted. Before heading to the beach, please also check the Department of Health (DOH) information below which is related to health of the shellfish and may be updated daily. To harvest on this beach, it must be both during the WDFW approved season and approved by the DOH.

Harvest profile

Double Bluff County Park, also known as Useless Bay Tidelands, is a 24,354 foot stretch of beach on the southwest shore of Whidbey Island. The beach is wide and sandy at the access and becomes rockier with cobble and large boulders towards the west. Two large unstable bluffs are the major feature of the uplands. Clam habitat is patchy and restricted to the cobble areas in the lower intertidal. While butter clams are the species most commonly harvested at this beach, native littleneck clams, cockles, horse clams, eastern softshell clams, and macoma clams are also present in lesser numbers.


From the south: From the Mukilteo ferry terminal drive north on Hwy 525 for 8.3 miles. Turn left on Double Bluff Road and follow to the end.

From the north: Take Hwy 20 south through Oak Harbor and continue on Hwy 525. Turn right onto Double Bluff Road and follow to the end.


There is parking space for up to 24 cars.


Double Bluff County Park (the upland portion of the park) is operated by the Friends of Double Bluff and Island County. There are bathrooms, outdoor showers, picnic areas and a pay phone at the access area. This is an off-leash dog park. This beach features views to the south of Mt. Rainier.

Fun facts

More information for Double Bluff Beach & Dog Park.