
Navigate the intricate industrial inlets and secluded settlements of Northern Vancouver Island with the professional authority of the Canadian Hydrographic Service (CHS). Chart 3681 is a specialized "road map" featuring high-resolution inset plans. It provides the granular detail required for safe pilotage in the high-consequence narrows and docking facilities of Port Alice, Coal Harbour, and Quatsino.
While general charts provide the layout of the sound, Chart 3681 is indispensable for the "final mile" of your voyage. This chart provides the "ground-truth" data required for these specific destinations:
Port Alice & Neroutsos Inlet (1:15,000): Features the high-detail mapping necessary for approaching the industrial docks and marinas at the head of the inlet.
Coal Harbour (1:6,000): Provides extreme precision for the historic former whaling station and current gateway to Holberg Inlet, identifying safe berths and local hazards.
Quatsino Narrows (1:12,000): Offers the resolution needed to navigate the powerful tidal flows and narrow passages that connect the main sound to the inner inlets.
Bergh Cove & Hecate Cove (1:1,500): Specialized berthing-scale detail for the primary local landings and supply points in the Quatsino community.
With the convergence of commercial shipping for the forest industry and recreational traffic exploring the North Island, the reliability of Chart 3681 is paramount. Specifically designed to show precise water depths, seafloor characteristics, and navigational aids, this chart ensures mariners can transition from the open sound to a secure berth with total confidence.
| Feature | Details |
| Chart Number | 3681 |
| Region | Pacific Coast (Northern Vancouver Island) |
| Scale | Various (1:1,500 Berthing to 1:15,000 Harbor Plans) |
| Dimensions | 36" x 47" (Standard Paper Size) |
| Publisher | Canadian Hydrographic Service (CHS) |
| Key Coverage | Port Alice, Coal Harbour, Quatsino Narrows, Neroutsos Inlet |
| Compliance | Meets official carriage requirements for safe harbor navigation |