Boat Bluff Lighthouse is located near Klemtu on the scenic south end of Sarah Island in Tolmie Channel on the Inside Passage of British Columbia.

[3] The skeleton tower is 24 feet high giving it a focal plane 38 feet above sea level.

The station is still staffed by resident keepers.

Boat Bluff has an oceanic climate (Cfb) with mild summers and cool winters with heavy rainfall year-round.

Boat Bluff is among the rainiest places in Canada.