As a male Orca plows through the rippled water off Northern Vancouver Island in British Columbia, Canada, the mist from his blowhole is clearly visible in the lighting. Everytime the Orca surfaces, the mist shoots a few feet above while lingering for a short period of time.
When the water is rougher, it is hard to see the mist, or even the Orca for that matter, but on calmer days, the mist remains in sight. A single blowhole on the Orca's head is how it breaths, leaving the blow hole closed while under water and then it exhales and opens its blowhole just before reaching the surface, causing a gust of mist.
Killer Whales off Northern Vancouver Island, British Columbia, Canada
Technical Information:
I photographed this photo with the digital SLR camera model Canon EOS-1Ds Mark II, aperture of f/7.1, exposure time of 1/800 sec. on ISO 200, as always I used a original Canon Lens, the focus lenght for this picture was 400mm.