What You'll Find at Discovery Park

Discovery Park sits on the Napa River in Vallejo, about 30 miles northeast of San Francisco, and offers one of the most accessible saltwater fishing spots in the Bay Area. The park's pier and shoreline give you direct access to striped bass, sturgeon, leopard sharks, and jacksmelt — species that move through the river system with the tides. The water here is brackish, mixing fresh river flow with bay salt, which creates the conditions these fish prefer.

The park itself is a working waterfront with a public fishing pier, sandy beach, and grassy areas. Parking is free, and the pier is open during daylight hours. You don't need a boat to fish here; the pier and shore access are enough for most anglers. The main draw is that it requires minimal gear and no special logistics — you can show up with a rod and catch fish the same day.

Key Takeaways

  • Discovery Park's pier and shoreline are open to the public year-round, with free parking and no entrance fee.
  • Striped bass and sturgeon are the primary targets, with best fishing from late spring through early fall when water temperatures rise.
  • You must have a valid California fishing license; a saltwater stamp is not required for the Napa River since it is brackish water.
  • Tidal movement controls feeding activity, so check tide tables before you go — incoming tides and slack water are usually most productive.
  • The pier can get crowded on weekends, especially in summer, so arriving early or fishing on weekdays gives you more space and better conditions.

Seasons and What Bites When

Striped bass fishing peaks from May through September, when water temperatures climb and the fish move into shallower areas of the river. Early morning and late afternoon are best during summer heat. Spring (March to May) can be excellent too, especially for larger fish moving upriver to spawn, though the water is still cold.

Sturgeon are present year-round but most active in fall and winter (September through February), when they feed heavily before spawning season. Leopard sharks show up in summer and early fall. Jacksmelt are a reliable catch in spring and early summer and are good for beginners because they bite readily and are fun to catch, even if they're small.

Winter months (December through February) are slower overall, but sturgeon fishing can be productive if you're willing to fish deeper water and use heavier tackle. Rain and high river flows can muddy the water and make fishing tougher, so check conditions before making the drive.

Tackle and Bait That Works

For striped bass, medium spinning or baitcasting rods (6 to 7 feet) with 10- to 15-pound test line are standard. Live bait — anchovies, herring, or shiner perch — works best, though artificial lures like small swimbaits and topwater plugs catch fish too. Cast near pilings and along the pier edges where bass hunt.

Sturgeon fishing requires heavier gear: 7- to 8-foot rods, 20- to 30-pound line, and 2- to 4-ounce sinkers to keep bait on the bottom where sturgeon feed. Use fresh shrimp, squid, or cut mackerel. Sturgeon are bottom feeders and rarely chase lures, so bait is your only real option.

For leopard sharks and jacksmelt, lighter tackle works fine — 6-foot rods and 8- to 12-pound line. Small pieces of squid or shrimp catch both species. Jacksmelt will also take tiny artificial lures and are forgiving fish for someone learning to cast.

Regulations and Licensing

California requires a fishing license for anyone 16 and older. You can buy a one-day license, annual license, or multi-year license through the California Department of Fish and Wildlife website or at local sporting goods stores. The Napa River is brackish water, so a saltwater stamp is not required — your freshwater license covers it.

Striped bass have a 18-inch minimum size limit and a two-fish daily limit. Sturgeon must be between 40 and 60 inches (fork length) and you can keep one per day. Leopard sharks have a 36-inch minimum and a four-fish daily limit. Jacksmelt have no size limit and a 25-fish daily limit. Always check the current regulations before you fish, as rules can change.

The pier itself is public, but stay aware of any posted closures or restrictions. Occasionally sections of the park close for maintenance or events — call ahead or check the Vallejo Parks and Recreation website if you're making a long drive.

Getting There and What to Bring

Discovery Park is at 1 Waterfront Drive, Vallejo, CA 94590. From San Francisco, take I-80 north toward Vallejo, then follow signs to the waterfront. Parking is free and plentiful. The pier is accessible from the main parking area, and there's a restroom facility on-site.

Bring sunscreen, a hat, and water — the pier offers no shade and the sun reflects off the water. If you're fishing in fall or winter, bring a jacket; wind off the bay can be cold even when the air temperature seems mild. A small cooler keeps your catch fresh and holds drinks and snacks. Bring a headlamp or flashlight if you plan to fish early morning or evening.

Bait shops in Vallejo sell live anchovies and herring, so you don't have to bring bait from home. The nearest is usually a short drive from the park. If you forget tackle, a basic rod and reel setup is available at local sporting goods stores, though prices are higher than buying online in advance.

Why Discovery Park Stands Out

Discovery Park is one of the few places in the Bay Area where you can fish for striped bass and sturgeon without a boat. The pier is well-maintained, the water is productive, and the park has the basic amenities — parking, restrooms, and open space. It's also less crowded than some Bay Area piers, especially on weekdays.

The mix of species keeps fishing interesting. You might catch striped bass one trip and sturgeon the next, or land jacksmelt while waiting for a bigger fish to bite. The river system here is dynamic — tides, seasonal flows, and water temperature all shift what's feeding on any given day, so conditions change enough to keep regular anglers coming back.

The waterfront location also makes it a good spot to bring family or friends who want to fish but aren't experienced. The pier is safe, the fish are catchable, and you can spend a few hours without needing special skills or expensive gear.

Frequently Asked Questions

Do I need a boat to fish at Discovery Park?

No. The public pier and shoreline give you plenty of access. Most anglers fish from the pier, which extends into the river and puts you in productive water. You can catch striped bass, sturgeon, and other species without leaving the pier.

What's the best time of day to fish here?

Early morning (sunrise to mid-morning) and late afternoon (two hours before sunset) are most productive, especially in summer. Tides matter more than time of day though — check tide tables and fish the incoming tide or slack water when fish feed most actively.

Can I keep what I catch?

Yes, within the daily and size limits set by California. Striped bass (two per day, 18-inch minimum), sturgeon (one per day, 40–60 inches), leopard sharks (four per day, 36-inch minimum), and jacksmelt (25 per day, no size limit) are all legal to keep. Always verify current regulations before you fish.

Is Discovery Park crowded?

It can be busy on summer weekends, especially Saturday and Sunday afternoons. Weekday mornings are usually quieter. If you want more space and better fishing, go early in the week or arrive before 8 a.m. on weekends.

What if the water is muddy or the weather is bad?

High river flows from rain can muddy the water and slow fishing. Wind and rough conditions make the pier less comfortable but don't stop fish from biting. Check weather and river conditions before you go. If conditions are poor, wait a day or two for the water to clear.