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Collinson Reef

Ganges, British Columbia, Canada

Photo: David Stanley from Nanaimo, Canada · CC BY 2.0

EntryBoat

Max depth18 m

LevelIntermediate and up

Water bodySalish Sea

Water temp8–14°C

Estimated from climate dataMay–Sep

About this site

Collinson Reef is a reef dive site near Ganges, British Columbia, Canada, in the Salish Sea. It is reached from a boat with a maximum depth of about 18 m. Best for divers with some experience. Marine life recorded within about 5 km (OBIS/GBIF) includes seals, dolphins, harbor seals, nudibranchs, sea lions. Typical surface water temperature ranges from about 8 to 14 °C over the year.