California offers recreational clamming from the Oregon border down to San Diego County, with the best spots clustered in three zones: the North Coast for razor clams, the bays north of San Francisco for gaper and littleneck clams, and the Central and Southern Coast for Pismo clams. Where you go depends on which species you’re after, and each comes with different rules, seasons, and gear.
North Coast: Razor Clams
The North Coast is California’s razor clam territory. The two main areas are Clam Beach in Humboldt County and the beaches north and south of Battery Point near Crescent City in Del Norte County. These beaches are rotationally opened every other year, so one county’s beaches may be closed while the other’s are open.
There’s a critical safety note here: the Humboldt County razor clam fishery has been closed since May 2, 2024, due to elevated levels of domoic acid, a naturally occurring toxin that accumulates in shellfish and can cause serious neurological harm. Del Norte County’s fishery reopened on July 30, 2025. Always check the California Department of Fish and Wildlife’s health advisory page before heading out, as these closures can change with little notice. When the fishery is open, you can take up to 20 razor clams per person per day.
Tomales Bay and Bodega Bay
If you’re looking for gaper clams and littleneck clams, the bays north of San Francisco are your best bet. Tomales Bay and Bodega Bay are the two most popular clamming destinations in this region, drawing 130 to 280 clammers per day on summer weekends when tides drop to negative half a foot or lower. Lawson’s Landing at the mouth of Tomales Bay is a well-known access point.
Other productive spots in this zone include Drakes Estero in Point Reyes, Humboldt Bay farther north, and Elkhorn Slough near Moss Landing on Monterey Bay. These are all sheltered bays with the sand and mud bottoms where burrowing clams thrive. Most saltwater clam species in California have no closed season, no bag limit, and no size limit, so the regulations here are simpler than for Pismo or razor clams.
Central Coast: Pismo Clams
Pismo Beach, the clam’s namesake, remains the heart of California’s Pismo clam population. The fishery is open, and recent surveys show encouraging signs of recovery, with hundreds of siphon holes and mounds visible on the beach. That said, finding legal-sized clams is genuinely difficult. Years of overharvesting and ongoing illegal take of undersized clams have left very few locations where clams actually reach harvestable size.
Pismo clams can legally be taken from beaches in San Luis Obispo, Santa Barbara, Ventura, Los Angeles, Orange, and San Diego counties. You won’t find them north of Half Moon Bay. The season is year-round in most counties, with one exception: in Santa Cruz and Monterey counties, the season runs September 1 through April 30.
The minimum size is 4.5 inches in diameter south of the San Luis Obispo/Monterey county line (which includes Pismo Beach itself) and 5 inches north of that line. You’re limited to 10 Pismo clams per day, and any undersized clams must go back into the hole where you found them. Realistically, you may dig for hours and not find a single clam that meets the size requirement. That’s normal, and it’s a sign the population is still rebuilding.
What You Need Before You Go
Anyone 16 or older needs a valid California sport fishing license to clam. A resident annual license costs $64.54. Nonresidents pay $174.14 for the year, or you can pick up a one-day license for $21.09 or a two-day license for $32.40. Nonresidents also have the option of a ten-day license for $64.54. You can buy these online through the CDFW website or at many sporting goods stores.
For gear, a sturdy clam fork or narrow shovel works for most species. Razor clammers on the North Coast typically use a narrow “clam gun” or shovel designed to dig quickly in wet sand. For Pismo clams, many people use a pitchfork-style clam fork to avoid cracking shells. Bring a measuring device so you can check clam size on the spot, especially for Pismo clams where the size limit is strictly enforced. A mesh bag or bucket to hold your catch and a pair of rubber boots or waders round out the essentials.
Timing Your Trip Around the Tides
Clamming is entirely tide-dependent. You need a low tide to expose enough beach to dig, and the lower the tide, the better. Minus tides (below zero feet) are ideal because they uncover clam beds that are normally submerged. Plan to arrive at the beach about two hours before the predicted low tide. This gives you the full window as the water recedes and before it starts coming back in.
Summer and fall tend to produce the best minus tides during daylight hours, which is why Tomales Bay and Bodega Bay see peak crowds on summer weekends. In winter, the lowest tides often fall in early morning darkness, which is common for North Coast razor clamming. Check a local tide chart for your specific beach, since tide timing varies by location.
Staying Safe From Shellfish Toxins
Domoic acid and paralytic shellfish poisoning are real risks with any wild shellfish in California. These toxins are produced by algae blooms and concentrate in clam tissue. You can’t see, smell, or taste them, and cooking does not destroy them. At high levels, domoic acid causes vomiting, seizures, and permanent memory loss.
The state monitors toxin levels and issues closures when they spike. The Humboldt County razor clam closure that began in 2024 is a good example of how quickly conditions can change. Before any clamming trip, check the CDFW’s health advisories page for current closures. This applies to every species and every location, not just razor clams up north.