Gray whales (Eschrichtius robustus) are baleen whales, which exhale through TWO slits called blowholes on top of their head creating two prismatic misty towers high in the air. You can clearly see the two blowholes in the first of the three images below.
PS The gray whales we saw were in the area between Vargas and Blunden Islands which is located west of Meares Island and northwest of the resort community of Tofino in the Clayoquot Sound region of the West Coast of Vancouver Island, British Columbia, Canada. Wikipedia
By the way, the phrase. there she blows. (nautical) is the traditional hail of the lookout in a whaler (whaling ship) when sighting the spouting water thrown up by a whale surfacing. Wiktionary
Tags: peggyhr Gray Whale IMG_9508zz Clayoquot Sound Vancouver Island BC Canada Eschrichtius robustus spout prismatic The Whale Centre Howie