The video can be seen on Vísir
(by clicking "Horfa á myndskeið með frétt"), who report that the cameraman was rescue worker and Grundafjörður resident Tómas Logi Hallgrímsson.
Last Sunday, Tómas, along with his mother and father, decided to take advantage of the good weather by sailing Tómas' father's boat out onto the water. Shortly after leaving shore, they spotted a group of killer whales feeding on the herring which has been plentiful in the area lately.
Tómas said that the last time he saw so many killer whales in one place, he was not equipped with a camera, so he seized the opportunity to capture the moment on video.
"It was incredible," Tómas told reporters. "You don't realise how big they are until you're close enough that you can almost reach out and touch them. I sometimes needed to look over both sides [of the boat] in order to see the whole creature."
This is not the first time killer whales have been spotted and filmed near the coast of Iceland. Last July, a group of killer whales was filmed
off the coast of Flatey.
An Icelander captured on video a group of killer whales feeding near the west Iceland town of Grundafjörður.