Potlatch State Park on Hood Canal is one of the most accessible places in Mason County to harvest shellfish — no boat required, easy parking, and a beach that produces oysters, Manila clams, mussels, cockles, and (with a separate license) geoduck. The spring season runs through May 31, 2026. If you’ve been meaning to try it, you have roughly five weeks left — and this is what you need to know before you go.
Where Is Potlatch and How Do You Get There?
Potlatch State Park is on U.S. Highway 101 approximately 12 miles north of Shelton, just past Hoodsport on the western shore of Hood Canal. From Shelton, take Highway 101 north through Hoodsport — the park entrance appears on the left (water side) after you pass through town. From Belfair or Allyn, take Highway 3 to 101 and head south toward Hoodsport.
Important parking note: shoulder parking along Highway 101 mileposts 335.07 to 335.72 is actively enforced. Use the designated parking areas at the state park and the adjacent Potlatch DNR beach access, not the highway shoulder. Rangers do ticket here, especially on weekend mornings during harvest season.
What License Do You Need?
For clams, oysters, mussels, and cockles: you need a standard Washington fishing license with a shellfish-seaweed catch record. These are available from WDFW’s licensing website, from license dealers (sporting goods stores, some grocery stores), or via the WDFW mobile app. Licenses are valid for the calendar year.
For geoduck specifically: geoduck require a separate license in addition to the standard shellfish license. Geoduck limits and regulations can also change by area year to year — in 2026, the Hood Canal daily geoduck limit dropped to 1 per person per day (down from 3). If geoduck isn’t your primary goal on a first trip, skip the separate license for now and focus on clams and oysters.
What You’ll Find on the Beach
Potlatch has over a mile of tidelands. The stretch closest to the highway is regularly harvested and is where you’ll find the highest concentrations of Manila clams in the middle and upper intertidal zones, with the greatest abundance on the large tide flat at the southern end. Oysters tend to cluster in the lower intertidal area — closer to the water line and accessible mainly on big minus tides.
For a first trip with family, Manila clams are the most beginner-friendly target. They’re small (1–2 inches), buried just 2–4 inches in the sand and gravel, and found in densities that make digging feel productive quickly. A small garden trowel or clam gun works well. Check current limits before you go — WDFW updates them, and Hood Canal limits can differ from Puget Sound limits even for the same species.
The 2026 Rule Changes You Must Know
Two Hood Canal-specific regulations changed for 2026 and apply at Potlatch:
- Cockle minimum size: 2.5 inches. The minimum legal harvest size for cockles increased from the prior standard to 2.5 inches shell diameter. If you’re not sure what a cockle looks like, they are round, ribbed clams — rounder and more dome-shaped than a Manila or littleneck. Bring a small ruler or measuring gauge.
- Geoduck daily limit: 1 per person per day. The geoduck limit on Hood Canal dropped to 1 per day (formerly 3). Geoduck are the giant clams — their siphons protrude from the sand and they require real digging. A first-timer is unlikely to encounter geoduck casually, but if you spot one, know the new limit.
Tribal Boundaries and What They Mean for Harvesters
The Skokomish Tribal Nation holds treaty rights over tidelands in parts of Hood Canal, including areas adjacent to Potlatch State Park. State-licensed recreational harvesters must remain on state or DNR-managed tidelands — not tribally-held tidelands. At Potlatch, the state park and adjacent DNR beach are the appropriate harvest areas. If you are uncertain about boundaries, harvest near the clearly marked state park beach rather than wandering south toward the tribal boundary areas.
Always Check for Biotoxin Closures Before You Go
This is non-negotiable: before any shellfish outing, check the Washington State Department of Health’s Shellfish Safety Map at doh.wa.gov or call WDFW’s shellfish safety hotline. Biotoxin (paralytic shellfish poisoning) closures happen without warning on Hood Canal beaches, including Potlatch. Biotoxins are odorless and tasteless — you cannot detect them in the shellfish. A closure means the shellfish are not safe to eat, period. No exceptions. Check before every trip, even if you were there last weekend.
If Potlatch Is Crowded — Two Nearby Alternatives
Weekend afternoons in May can get busy at Potlatch. Two nearby alternatives on the same highway corridor:
- WDFW Hoodsport Hatchery beach is open for shellfish harvest through July 31, 2026. It’s in Hoodsport on Highway 101 — shorter drive from Shelton, slightly less well-known, and open a full month past Potlatch’s May 31 close.
- Eagle Creek shellfish area is open for oyster harvest year-round. Smaller and quieter than Potlatch. Good if you want oysters specifically and don’t need to stay in the May-season window.
Frequently Asked Questions — Potlatch Shellfish for First-Timers
Do I need a license to harvest shellfish at Potlatch State Park?
Yes. You need a Washington fishing license with a shellfish-seaweed catch record. Available from WDFW’s website, the WDFW mobile app, or licensed dealers. Geoduck require an additional separate license. Children under 15 are typically exempt from licensing requirements — check WDFW’s current exemption rules for your child’s age.
When is the Potlatch shellfish season in 2026?
The clam, mussel, and oyster season at Potlatch State Park runs April 1 through May 31, 2026. After May 31, Potlatch closes for the summer. The WDFW Hoodsport Hatchery beach (also on Hood Canal near Highway 101) remains open through July 31, 2026.
What is the cockle minimum size at Potlatch in 2026?
The minimum legal harvest size for cockles on Hood Canal, including Potlatch, is 2.5 inches shell diameter in 2026. This increased from the prior standard. Bring a measuring gauge — it’s a $125+ infraction to keep undersized shellfish.
Can I park on the highway shoulder at Potlatch?
No. Highway 101 shoulder parking from mileposts 335.07 to 335.72 is actively enforced at Potlatch. Use designated parking at the state park or DNR beach access. Violations are ticketed, especially on weekend mornings during peak season.
How do I know if Potlatch is closed for biotoxins?
Check the Washington State Department of Health’s Shellfish Safety Map at doh.wa.gov or call WDFW’s shellfish safety hotline before every trip. Biotoxin closures can be issued at any time and are not predictable — the shellfish look and smell normal during a closure. Never harvest without confirming the beach is open.
For the full 2026 Potlatch season guide including alternate beaches and detailed regulation updates, see Hood Canal Shellfish Season Open Through May 31: Potlatch Beach Guide for Mason County Harvesters. For more things to do in Mason County, see Things to Do in Mason County: The Definitive Guide.
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