The strait between Vancouver Island and Denman Island — one of the richest marine environments on the British Columbia coast
Baynes Sound is the narrow strait separating Denman Island from the east coast of Vancouver Island. Stretching roughly 30 kilometres from Deep Bay in the south to the Comox Valley in the north, it is one of the most biologically productive marine corridors in all of British Columbia. These are Captain Pat's home waters — the waters he's fished, explored, and guided in for over 28 years.
Baynes Sound produces approximately half of British Columbia's total shellfish harvest, earning it the unofficial title of the Shellfish Capital of Canada. The sound's shallow, nutrient-rich waters support thriving populations of Pacific oysters, manila clams, Pacific scallops, and mussels. The Fanny Bay Oyster — one of Canada's most celebrated shellfish brands — is grown right here.
This incredible shellfish productivity is driven by the same conditions that make Baynes Sound exceptional for fishing: strong tidal currents, upwelling of cold, nutrient-dense water, extensive eelgrass beds, and a food web that starts with massive phytoplankton blooms and cascades up through herring, salmon, lingcod, rockfish, and eventually to the marine mammals and seabirds that make these waters their home.
Every late winter, Pacific herring return to Baynes Sound in massive schools to spawn. The herring spawn is one of the most dramatic natural events on the BC coast — the water turns a milky turquoise as billions of eggs are deposited on eelgrass, kelp, and rocky substrates along the shoreline. The spawn triggers a feeding frenzy that draws an astonishing concentration of marine life into the sound.
Steller and California sea lions arrive by the hundreds, hauling out on log booms at Fanny Bay and Norris Rocks. Thousands of seabirds — scoters, mergansers, Pacific loons, and Brant geese — gather to feed. Bald eagles line every waterfront tree. And Bigg's (transient) orcas follow the sea lions into the sound, creating a spectacle that has to be seen to be believed.
Baynes Sound and the adjacent Lambert Channel are jointly designated as a federally recognized Important Bird Area (IBA), supporting the second-largest concentration of wintering waterfowl in British Columbia. Over 100 species of birds have been recorded here, including significant populations of surf scoters, white-winged scoters, long-tailed ducks, harlequin ducks, Pacific loons, great blue herons, and Brant geese.
The IBA designation reflects the global significance of these waters for migratory and wintering bird populations. For birdwatchers and nature photographers, a boat tour through Baynes Sound in winter offers access to concentrations of seabirds that are nearly impossible to find anywhere else on the Pacific coast.
The same rich ecosystem that supports shellfish and herring also supports outstanding sport fishing. Baynes Sound is home to:
Spring salmon from late winter through fall, with peak fishing from May through September. Coho salmon arrive in late summer. The herring-rich waters produce strong, well-fed fish.
Excellent lingcod fishing over the rocky reefs and ledges. Yelloweye rockfish in deeper water. The sound's complex bottom structure provides ideal habitat.
Pacific halibut are caught in the sandy and mixed-bottom areas of the sound. Captain Pat knows the spots where these flatfish hold.
Spot prawn trapping is a popular add-on to fishing charters. The sound's deep channels and muddy bottoms support healthy prawn populations.
Baynes Sound is accessed from multiple points along Vancouver Island's east coast. The BC Ferries crossing from Buckley Bay to Denman Island traverses the sound in about 10 minutes. Boat launches are available at Deep Bay, Fanny Bay, and Union Bay. The Comox Valley — the nearest urban centre — is about 20 minutes north of the ferry terminal.
These are Captain Pat's home waters. Whether you want to fish for Spring salmon and lingcod, witness the herring spawn spectacle, tour the sea lion colonies, or spot humpback whales and orcas, Big Coast Marine Adventures puts you right in the heart of Baynes Sound's incredible marine ecosystem.