It’s certainly becoming quite a whale of a tail.

Chelsea Crawford was in Baja California, Mexico, on a whale-watching boat trip when she got slapped by the tail of a massive mammal that had come near her boat.

“Being smacked by the whale definitely hurt,” the 19-year-old student from Nova Scotia said.

Adding the whale's tail was a lot bonier than she would’ve expected.In the video Crawford appears to be minding her own business, standing near the end of the boat, when a giant tail emerges and smacks her on the head.

Luckily, she escaped serious injury and just had some bruising on her head and shoulder as a result.

Crawford is currently in Mexico teaching English and building homes with the Live Different Academy, a Hamilton, Ont.-based charity that does humanitarian work internationally.

Crawford’s friend, Jordyn Rivet, was the one who captured the moment on video and said things got a little nerve wracking when the whales drew closer to their boat.“Our boat really wasn't that big and full-grown grey whales are huge.

After a while I began to get less nervous and was just thinking about how cool of an experience it was to get to see these whales so close up,” she said.

The slap happened in a flash and Rivet said everyone on the boat was left a little dumbfounded.

“Right after being hit, she was a bit in shock, as were all of us, no one could really believe that it had actually happened,” Rivet recalled.

The video now has over a million views on YouTube since being posted Feb. 23, and the girls have received quite the response since the video blew up.

“The response since posting the video has been unbelievable. I first posted it just so that all of our friends and families could see what happened,” she said. “I still can't really wrap my head around the fact that over a million people have seen it in just a few days.'

Crawford may have escaped the encounter without a scratch, but there’s no doubt she may have a headache from telling the story by the time she gets back home.