The park land was originally donated by Emma and Joe Williams, whose names were combined to create the name 'Joemma'.
The shoreline is situated on Case Inlet, which is known for its productive shellfish beds and tidal influence.
The park provides a specific primitive boat-in campsite designated for water trail users.
The site acts as a gateway for paddlers traveling the Cascadia Marine Trail.
The water off the shore is frequently used by local diving clubs for underwater exploration due to the diverse marine life in Case Inlet.
Joemma Beach State Park is a 122-acre marine camping park located on the Key Peninsula along the shores of Case Inlet. The park features approximately 3,000 feet of saltwater shoreline, providing significant opportunities for fishing, crabbing, and clamming. Recreational amenities include a boat launch, two primitive campsites, and designated picnic areas. The landscape is characterized by a mix of forest and grassy fields that slope down toward the Puget Sound. It serves as a regional access point for water activities including kayaking and scuba diving. The beach area is primarily composed of sand and gravel, typical of the regional shoreline geography.
The end of the boat ramp at low tide looking toward the Olympic Mountains.
Bring water shoes to navigate the gravel-heavy sections of the beach comfortably.
Check local tide charts before arriving to ensure optimal conditions for clamming or walking the shoreline.
Pack all necessary food and supplies, as there are no nearby commercial services once you reach the Longbranch area.
Do not attempt to launch large deep-draft vessels at the ramp during extreme low tides.
The park is generally open year-round, though some primitive campsites may have limited access during extreme winter weather.
Practice Leave No Trace principles, pack out all trash, and adhere to Washington Department of Fish and Wildlife regulations for shellfish harvesting.