What Clarence Strait offers anglers

Clarence Strait is a deep, cold-water channel running north-south between Prince of Wales Island and Revillagigedo Island in Southeast Alaska. It holds saltwater species that thrive in strong tidal flows and rocky structure: halibut on the bottom, lingcod in the rocks, and seasonal runs of coho and pink salmon. The strait's reputation rests on halibut — fish that can run 50 pounds or more — and on the consistency of the fishing across a long season from May through September.

The water here is different from the protected inside passages. Clarence Strait opens to the Gulf of Alaska, which means bigger tides, colder temperatures, and weather that can change fast. Anglers who fish it successfully treat it like an ocean fishery, not a bay. That means respecting the tide schedule, watching the forecast, and understanding that some days the strait is unfishable and some days it's perfect.

Key Takeaways

  • Halibut fishing in Clarence Strait peaks May through July, with fish averaging 20 to 40 pounds and larger fish possible in deeper holes near the center of the channel.
  • Tidal current in the strait runs 2 to 4 knots on average tides and can exceed 5 knots during spring tides, making slack tide the most productive fishing window.
  • Access requires a boat — either your own, a charter out of Craig or Klawock on Prince of Wales Island, or a lodge-based operation — because there is no road access to the water.
  • Lingcod, rockfish, and seasonal salmon fishing are available, but halibut is the primary draw and the species most charter operations focus on.
  • Weather and tidal timing are the two factors that determine whether you fish on any given day; calm water and slack tide are both necessary for safe, productive fishing.

Halibut fishing in the deep channel

The center of Clarence Strait drops to 600 feet or more, and halibut live throughout that water column. Most charter fishing happens in 200 to 400 feet of water, where you can reach bottom with conventional jigging gear and still feel what's happening. The halibut here are aggressive — they'll take a heavy jig or a live herring dropped in front of them — and they're abundant enough that a half-day charter often produces multiple fish.

The best halibut grounds are the rocky ridges and drop-offs along both sides of the channel. The west side, near Prince of Wales Island, has more accessible structure in shallower water (150 to 250 feet), making it a good choice for newer anglers or when the weather is marginal. The center and east side of the strait hold larger fish but require more experience reading the water and managing a boat in stronger current.

Fishing halibut in Clarence Strait means working the tide. During slack water — the 20 to 40 minutes when the current stops between flood and ebb — your jig will drop straight down and you'll feel bites clearly. During strong current, your jig will swing and drift, which some anglers prefer for covering water, but it's harder to detect bites and easier to snag bottom. Most charter captains plan their day around slack tide windows, which shift about 50 minutes later each day as the moon phase changes.

Lingcod, rockfish, and structure fishing

Lingcod and various rockfish species live in the rocky areas throughout the strait, particularly around the islands and points where current funnels over structure. These fish are smaller than halibut — lingcod typically run 5 to 15 pounds, rockfish 2 to 5 — but they bite consistently and provide fast action. Many anglers fish for them while waiting for slack tide to fish halibut, or as a second target on the same trip.

Lingcod will take a jig, a live herring, or a small spoon worked over rocky bottom. They're aggressive and often hook themselves. Rockfish are more delicate — they prefer a slower presentation and smaller baits — but they're plentiful and willing. Both species are good eating, and both are legal to keep within Alaska's bag limits.

Salmon fishing and seasonal timing

Coho and pink salmon move through Clarence Strait on their way to spawning streams, creating seasonal opportunities from July through September. Pink salmon are abundant in odd-numbered years (2025, 2027, etc.) and nearly absent in even years. Coho are present most years but in smaller numbers than pinks. Both species will take a small jig, a spoon, or a fly, and both provide strong fights on light tackle.

Salmon fishing in the strait is less predictable than halibut fishing — it depends on the run timing, which varies year to year — but when the fish are in, the action can be fast. Charter captains who focus on halibut will often spend an hour or two jigging for salmon if conditions allow, particularly in late July and August when coho are moving through.

Charter operations and access

Craig and Klawock, both on Prince of Wales Island, are the main jumping-off points for Clarence Strait fishing. Craig has the larger fleet and more charter options. Most half-day and full-day charters depart in the morning, fish the slack tide windows, and return by afternoon. A full day typically means 6 to 8 hours on the water; a half day is 4 to 5 hours.

Charter costs vary but typically run $250 to $400 per person for a half day and $400 to $600 for a full day, depending on the boat size and the captain's reputation. Most charters provide tackle, bait, and fish cleaning. You'll need to bring rain gear, a jacket, and seasickness medication if you're prone to it — the strait can be rough, and the boat motion is real.

If you have your own boat, you can launch from Craig or Klawock and fish independently. The strait is well-charted, and GPS coordinates for productive halibut grounds are widely shared among local anglers. Fuel, ice, and supplies are available in both towns. Tidal current and weather are the main hazards; a 16-foot boat is the practical minimum for fishing the center of the strait safely.

Tides, weather, and when to fish

Clarence Strait's tidal range is 12 to 16 feet depending on the moon phase, and the current runs hard. During spring tides (around new and full moons), the current can exceed 5 knots in the center of the channel, making fishing difficult and boat handling demanding. During neap tides (around quarter moons), the current is gentler and fishing windows are longer.

Weather in Southeast Alaska changes fast. The strait opens to the Gulf, which means wind and rain can develop quickly. Most charter captains will cancel or reschedule if the forecast calls for sustained winds above 20 knots or if seas are running 4 feet or higher. Summer weather is generally more stable than spring or fall, but you should still expect rain and be prepared for it.

The fishing season runs May through September, with May and June offering the most consistent halibut fishing and the calmest weather. July and August are warmer but can be busier with other anglers. September is excellent for halibut and coho but weather becomes less predictable.

Gear and tackle for Clarence Strait

Halibut fishing in deep water requires heavy jigs — typically 12 to 16 ounces — and a medium-heavy jigging rod. Most charter boats provide tackle, but if you bring your own, bring multiple jigs because you'll lose some to snags on rocky bottom. Conventional reels (baitcasters) are standard for this fishing; spinning reels work but are less efficient in deep water.

For salmon and lingcod, lighter jigs (4 to 8 ounces) and smaller spoons work well. A 6 to 7-foot medium rod is adequate. Bring polarized sunglasses — they help you see bites and read the water — and a good pair of pliers for removing hooks and handling fish.

Live herring is the preferred bait for halibut and lingcod. Most charters provide it, but if you're fishing independently, you can catch herring in the shallows near Craig or Klawock, or buy it from local bait shops. Dead herring works but live bait produces more bites.

Frequently Asked Questions

What size halibut can I expect to catch in Clarence Strait?

Most halibut run 20 to 40 pounds, with plenty of fish in the 15 to 25-pound range. Fish over 50 pounds are caught regularly but not common. Smaller halibut (10 to 15 pounds) are also present and legal to keep. The size depends partly on where you fish — the center of the strait tends to hold larger fish than the shallower edges.

Do I need a fishing license to fish Clarence Strait?

Yes. Alaska requires a saltwater fishing license for all anglers 16 and older. You can purchase a license online through the Alaska Department of Fish and Game website, or at sporting goods stores and bait shops in Craig and Klawock. A three-day license is available if you're visiting briefly.

What's the difference between slack tide and running tide?

Slack tide is the 20 to 40-minute window when the current stops between the flood (incoming) and ebb (outgoing) tides. During slack, your jig drops straight down and you feel bites clearly. Running tide is when the current is moving — sometimes 3 to 5 knots — and your jig drifts with the water. Most halibut fishing happens during slack tide because it's easier to fish and easier to detect bites.

Can I fish Clarence Strait in May, or is it too early?

May is an excellent month for halibut fishing in Clarence Strait. Water temperatures are cold, which keeps halibut active, and the weather is often stable. The main drawback is that days are long (nearly 17 hours of daylight by late May), which means early mornings and late evenings. Most charters operate normally in May.

What should I do if I get seasick?

Take seasickness medication before you board — Dramamine, Bonine, or a prescription patch all work. Eat a light breakfast, stay hydrated, and focus on the horizon rather than the boat's motion. Most charter captains are experienced with seasickness and can adjust your fishing location or technique if you're struggling. The motion is usually worst in the first 30 minutes; most anglers adjust after that.