Spearfishing for California Halibut

A California halibut is one of the easiest fish in the state to shoot and one of the hardest to find. It lies flat on the sand, colored to match the bottom, and often buries itself until only its eyes show. The site's Ichthyopedia entry rates the shot 1 out of 5 for difficulty and the search 5 out of 5. A diver can swim right over one 10 feet away and never see it. Most of a halibut dive is spent looking.

The Rules

CDFW sets the limits for California halibut in its Southern Region page, updated September 1, 2026, and in the 2026 regulations booklet, last updated July 17, 2026.

• The season is open year-round.
• The minimum size is 22 inches total length, measured from the tip of the head to the tip of the tail.
• The daily bag limit is 5 fish south of a line running due west from Point Sur in Monterey County, and 2 fish north of it.
• Halibut fillets on a boat south of Point Arena in Mendocino County must be at least 16 3/4 inches long with the entire skin on.

Anyone 16 or older needs a California sport fishing license. South of Point Arguello in Santa Barbara County, the diver also needs an Ocean Enhancement Validation, $7.30 according to CDFW, unless the diver holds a 1-day or 2-day license.

One gear rule applies only north of Ventura County. Under CDFW section 28.90, no one may possess or use a spear within 100 yards of the mouth of any stream in the ocean there. That covers every creek mouth in Santa Barbara County and farther up the coast.

Protected Areas: Which Ones Allow a Halibut

A halibut is a finfish, so it counts under any protected-area rule that allows spearfishing for finfish. Areas that allow only certain open-water fish do not include it.

• Allowed: the Crystal Cove and Dana Point State Marine Conservation Areas in Orange County allow recreational spearfishing for finfish. The Kashtayit State Marine Conservation Area at Gaviota allows recreational take of finfish, and CDFW's own page for it names spearfishing for halibut in its surfgrass beds and sandy areas.
• Not allowed: Abalone Cove State Marine Conservation Area on the Palos Verdes Peninsula allows spearfishing only for white seabass and pelagic, or open-water, finfish, a defined list that includes yellowtail, barracuda, tunas, and bonito. Swami's State Marine Conservation Area in Encinitas works the same way. A halibut is neither, so it may not be taken in either area.
• Closed: every State Marine Reserve and every No-Take conservation area, including both Laguna Beach areas, prohibits all take.

The Orange County guide and the San Diego guide map those areas in more detail.

Where Halibut Live

Adults live on sand and mud from the surf zone out to about 600 feet. They are most abundant around 100 feet, and most stay within 200 feet of the surface. Young halibut spend their first 1 to 3 years in shallow bays and estuaries. They move out to the open coast at about 8 to 10 inches, well under the 22-inch minimum. The population is centered from Bodega Bay south into northern Baja California.

Spawning runs from February through August and peaks in May, in water 15 to 60 feet deep. That brings adults into diving depth. When grunion, small fish that come out of the water on a few nights each spring and summer to spawn on the sand, run onto Southern California beaches, halibut follow them into water as shallow as 3 to 5 feet. The Ichthyopedia entry names May through October as the best months to hunt them.

Nautical Nick classes the open sand where halibut live as the sandy flats biome. The best ground is sand next to something else: channels between rocky reefs, the edges of eelgrass beds, sand along jetties, and beds of sand dollars.

Beaches Where Halibut Turn Up

These spot pages report halibut on sand a diver can reach:

• Leo Carrillo State Beach, in northwest Los Angeles County, is outside every protected area. Sand fills the channels between and beyond its reefs and holds halibut past 30 feet. Most divers enter at the stair cove just left of Sequit Point.
• Deer Creek Beach, near the Ventura County line, is open under standard regulations. Local dive accounts report large halibut on the inshore sand. A 27-step stairway from the highway shoulder is the only way down.
• Gaviota sits inside the Kashtayit State Marine Conservation Area, where halibut may be speared. The beach is at the mouth of Gaviota Creek, and Santa Barbara County is north of Ventura County, so the 100-yard stream-mouth rule applies. The wind here is nearly constant, and there are no permanent lifeguards.
• Long Beach has calm water inside the breakwater over sand that supports halibut. Spearfishing is legal on the open shoreline, and the city's marine biological reserves do not include this beach.

These pages describe the kind of sand halibut use without naming the fish:

• Oceanside Harbor Beach is open sand between 2 rubble jetties, with no protected area. The jetty rock meets the sand at about 8 to 15 feet, and boat traffic makes the harbor channel itself unsafe to dive.
• Malaga Cove, at the north end of the Palos Verdes Peninsula, is outside the protected areas. Its eastern half is continuous sand that turns to reef toward Flat Rock Point.
• Little Corona del Mar Beach sits inside the Crystal Cove State Marine Conservation Area, where a halibut may be speared, and has eelgrass on the sand between its reefs.

Abalone Cove also reports halibut, in the sand pockets between its reef sections, but the conservation area there does not allow a halibut to be speared.

Finding One

The search is slow and low. A diver swims 8 to 15 feet off the bottom, slowly enough to see what is under them. The best tell is the eyes: 2 small dark dots, sometimes raised a little above the sand, that do not belong on a flat bottom. Next comes the outline, a faint oval or diamond where the sand looks a little too even or a shade off. A small dip where the fish settled, a mark left by its tail, or the flutter of a gill cover can give one away when the eyes do not.

The Ichthyopedia entry favors clear water, with visibility above 10 feet, and an incoming tide. The tide pushes bait toward shore, and halibut follow the bait in. Where a small halibut turns up, larger ones are often nearby.

Taking the Shot

A halibut that has not been spooked usually holds still while a diver eases in. It does not bolt at a distance the way a white seabass does. A rushed approach still flushes it, and a flushed halibut lifts off in a puff of silt and settles again 30 to 50 yards away, warier than before. Divers come down at an angle rather than straight on top of the fish, from the side or slightly behind, and most shots are taken from 6 to 10 feet away. If a fish bolts, divers swim a widening circle from where it left.

Guides call for a mid-length speargun, usually about 90 to 100 centimeters long, with a standard flopper shaft, a spear with a hinged barb near the point. That length is short enough to angle down at a flat fish and long enough for a 10-foot shot. The sand behind the fish acts as a backstop, so a slip tip, a detachable point that turns sideways inside the fish, is not needed. A 6- to 7-foot polespear, a hand-held spear driven by a rubber loop, is a common alternative, fitted with either a paralyzer tip (a cluster of thin prongs) or a 3-prong tip. The shot goes on the spine just behind the head, at the base of the gill cover, which kills the fish and pins it to the sand. A shot too far back can tear through the thin tail meat and lose the fish.

Unlike most flatfish, a California halibut has a wide mouth full of sharp, canine-like teeth, and a live fish will bite a careless hand. Divers grip a speared halibut through the gills, never the mouth.

Why the Limits Matter

Halibut support one of California's largest nearshore fisheries, and anglers on boats, piers, and beaches target the same fish. A 2011 stock assessment, cited in the Ichthyopedia entry, estimated the population at about 14 percent of its unfished level, with fewer young fish joining it after 1999. A diver has one advantage over an angler: the diver can see the fish and measure it by eye before pulling the trigger. The entry ties the 22-inch minimum and the bag limits to holding the population at that level.

The regulations in this guide were checked against CDFW's pages on September 27, 2026. CDFW changes limits and seasons between years, and its pages are the final word on any given day.