Turbot and Flounder: Hidden Target Species in San Diego Shallow Waters
Most San Diego spearfishers focus on the obvious targets: calico bass, sheephead, and the occasional halibut. But the shallow flats and sandy bottoms around our coast hold two species that deserve far more attention—California halibut’s smaller cousins, turbot and flounder. These flatfish are abundant, delicious, and often overlooked, making them a smart choice for divers who know where and when to hunt them.
Why Turbot and Flounder Matter
Turbot (Pleuronichthys coenosus) and flounder species like starry flounder (Platichthys stellatus) occupy shallow-water niches that larger halibut rarely inhabit. Both are excellent eating, with mild, flaky meat that rivals anything you’ll pull from deeper water. What makes them valuable to spearfishers is their abundance and accessibility—you don’t need deep water skills or dangerous depth to score consistent fish.
Turbot in particular are prolific around San Diego. They’re smaller than halibut (typically 10–18 inches, though larger specimens exist), camouflaged against sandy and silty bottoms, and active year-round. Flounder follow similar patterns but are slightly more seasonal and often found in murkier water near estuaries and bays.
Where to Find Them
Shallow sand flats are your primary hunting ground. Mission Bay’s shallow zones—especially the areas around Bahia Point and the back bays near Pacific Beach—hold excellent populations of turbot. The water is usually 6–15 feet deep, crystal enough to spot fish with good light conditions.
La Jolla Shores is another reliable spot, particularly the sandy bottom extending from the lifeguard tower outward. The gradual slope and consistent sand make it ideal for turbot hunting.
Coronado’s Silver Strand offers similar conditions with fewer divers. The shallow flats here can be productive, especially on neap tides when visibility stays decent and fish stay put.
San Diego Bay’s back channels—near the mudflats south of the Coronado Bridge and around Glorietta Bay—produce both turbot and flounder. Visibility is often limited (8–12 feet), but the density of fish compensates.
For flounder specifically, focus on areas with softer bottom and slight current: the approaches to False Point, the flats near Zuniga Jetty, and the shallows along Imperial Beach’s south side.
Seasonal Patterns
Winter through early spring (November–March) is peak season. Water clarity improves after autumn storms, and fish are active despite cooler temperatures. Turbot spawn in late winter, making them more aggressive and easier to locate.
Summer (June–August) can be challenging. Water warms, and both species move into slightly deeper water or murkier bays to escape surface heating. If you hunt, do it early morning before the sun warms the shallows.
Fall (September–October) is transitional. Flounder become more active as water cools; turbot remain steady but visibility can be inconsistent.
Hunting Technique
Turbot and flounder rely on camouflage, not speed. Hunt slowly, scanning the bottom methodically rather than cruising. They often lie half-buried in sand or silt, with only their eyes visible. Look for slight depressions, color breaks, or the telltale eye bumps.
Use a flashlight or dive light even in daylight—it helps spot eyes and contrast against the bottom. A 4–6mm gun is sufficient; these fish don’t require heavy firepower. Aim for a clean shot through the head or upper body. A miss will spook every fish in the immediate area on sandy flats.
Approach from the side or behind if possible. Turbot and flounder have excellent lateral vision but are less alert to threats approaching from their blind spots. Move slowly and deliberately; sudden movements trigger flight.
Breath-hold diving is standard here. You’re working 6–20 feet deep, often for 30–40 minute sessions. Wear a wetsuit even in summer—the shallows get cold, and you’ll spend more time in the water than on a deep hunt.
Gear and Preparation
A small mesh bag clips easily to your belt and keeps your catch organized. Flounder and turbot don’t thrash as much as other fish once taken, so handling is straightforward. A small slip tip or flopper works better than a large Hawaiian sling for precision shots.
Wear neutral colors—blacks and dark blues blend better than bright gear. Polarized sunglasses help you spot fish from the surface before entering the water.
Why You Should Hunt Them Now
Turbot and flounder populations in San Diego remain stable and underutilized. They’re a sustainable choice, and because most divers ignore them, pressure is minimal. You’ll often have productive flats to yourself.
They’re also a skill builder. Hunting flatfish teaches you to read subtle bottom features, control your approach, and make precise shots—skills that transfer directly to hunting more challenging species.
Start with Mission Bay or La Jolla Shores on your next clear morning. Bring a light, move slowly, and keep your eyes on the sand. You’ll be surprised how many fish you find once you start looking.
Track water conditions, tide times, and visibility in real time with the Element app—it’s built for San Diego divers who want to maximize their time in the water.