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This photograph of a Steller Sea Lion was taken at a depth of 9.1 metres at Vivian Island near Comox, Vancouver Island, Canada on 24th May 2018.

I used my Nikon D500 digital SLR with a Tokina 10-17mm lens at 17mm and two Inon Z-330 strobes on low manual settings. ISO 800, 1/200th sec, aperture F13, Exposure Compensation -0.3