
Navigate the heart of the Great Bear Rainforest with the professional authority of the Canadian Hydrographic Service (CHS). Chart 3943 is the definitive 1:40,000 scale navigational guide, providing the high-resolution data required to safely move through the primary shipping lanes of Finlayson Channel and the technical, island-studded waters of Tolmie Channel.
This region is a vital segment of the Inside Passage, serving as the main thoroughfare for BC Ferries, cruise ships, and the Kitasoo/Xai'xais community. CHS Chart 3943 provides the "ground-truth" data required for safe pilotage:
Klemtu & Swindle Island Detail: Features high-resolution mapping for the approaches to Klemtu (Trout Harbour), ensuring safe leads for vessels seeking fuel, supplies, and cultural connection.
Sarah Island & Hiekish Narrows: Detailed bathymetry for the waters surrounding Sarah Island, including the technical navigation required for the narrow and tide-sensitive Hiekish Narrows.
Transition to Princess Royal Channel: Provides the resolution necessary to navigate the northern junction where Tolmie Channel meets Graham Reach, a critical point for vessels heading toward the Spirit Bear habitat.
Hazard & Anchorage Intelligence: Explicitly marks drying reefs, kelp forests, and seafloor composition, vital for identifying secure anchorages in the deep, fjord-like basins of the Central Coast.
As the primary resource for vessels transiting between Milbanke Sound and the North Coast, the reliability of Chart 3943 is paramount. Specifically designed to meet the rigorous requirements of marine navigation, this official CHS chart delivers the accuracy and detail needed to explore the Mid-Coast with total confidence.
| Feature | Details |
| Chart Number | 3943 |
| Region | Pacific Coast (Central Coast BC / Klemtu) |
| Scale | 1:40,000 |
| Dimensions | Approx. 36" x 48" (Standard Paper Size) |
| Publisher | Canadian Hydrographic Service (CHS) |
| Key Coverage | Finlayson Channel, Tolmie Channel, Klemtu, Sarah Island, Hiekish Narrows |
| Compliance | Meets official carriage requirements for safe marine navigation |