
Navigate the intricate harbors and renowned anchorages of Vancouver Island’s west coast with the professional authority of the Canadian Hydrographic Service (CHS). Chart 3646 is a specialized "road map" featuring high-resolution inset plans. It provides the granular detail required for safe pilotage in the high-traffic hubs of Bamfield, Ucluelet, and the sensitive marine environments of the Pacific Rim National Park Reserve.
While general charts provide the broad layout of the sound, Chart 3646 is essential for the "final mile" of your journey. This chart provides the "ground-truth" data required for these specific destinations:
Bamfield & Grappler Inlets: Features the high-detail mapping necessary for navigating the busy boardwalk-lined waters of Bamfield, identifying safe docks and submerged hazards.
Ucluelet Inlet: Detailed bathymetry for the primary service hub of the region, essential for commercial fishing fleets and recreational cruisers entering the inner boat basin.
Broken Group Islands: Offers critical plans for key passages and anchorages within this world-famous archipelago, ensuring paddlers and boaters avoid hidden reefs and drying rocks.
Effingham Inlet & Sechart: Provides the necessary navigational leads for the northern reaches of the sound, including the approaches to historical whaling stations and modern eco-tourism lodges.
With the convergence of commercial shipping heading to Port Alberni and heavy recreational use in the Broken Group, the reliability of Chart 3646 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 sheltered berth with total confidence.
| Feature | Details |
| Chart Number | 3646 |
| Region | Pacific Coast (West Coast Vancouver Island) |
| Scale | Various (1:6,000 to 1:20,000 High-Detail Plans) |
| Dimensions | 36" x 48" (Standard Paper Size) |
| Publisher | Canadian Hydrographic Service (CHS) |
| Key Coverage | Bamfield, Ucluelet, Broken Group Islands, Sechart, Port Alberni |
| Compliance | Meets official carriage requirements for safe harbor navigation |