Seymour Inlet

Seymour Inlet is one of the lesser traveled of the principal inlets of the British Columbia Coast. Unlike larger inlets such as Knight or Bute, it is not flanked by mountains but by relatively low, but still rugged, coastal hill-country and forms a maze of complex, narrow waterways and tidal pools and lagoons.

Its main arm is 75 kilometres in length from the mouth of the Seymour River to the mouth of its north arm, Belize Inlet, which is c. 50 km in length and has its own side inlets, narrow waterways named Wentworth Sound and Alison Sound. In between Belize Inlet and Seymour Inlet is Nugent Sound, named for the first U.S. Consul in Victoria; Seymour Inlet itself is named for Frederick Seymour, Governor of the Crown Colony of British Columbia from 1864 to 1869.

Seymour Inlet has its own side-inlets, the largest being a south arm named Frederick Sound, with a side-inlet of its own named Salmon Arm. Another is an unnamed inlet in the southwest corner, 12 km in length with its own side-inlets, including Nenahlmai Lagoon. Seymour Inlet does not open directly onto the Queen Charlotte Strait but is accessed via Slingsby Channel and Schooner Channel, which are the passages on either side of Bramham Island.