Jooke Robbins, the director of Humpback Whale Studies at the Centre for Coastal Studies in Provincetown told The Cape Cod Times that as humpback whales feed, their mouths open and billow out in a parachute-like manner, obstructing their vision.
Without warning, the 24-year-old who was calmly paddling the waves in his inflatable yellow kayak at around 3pm local time was suddenly engulfed by the jaws of the humpback whale.
THIS is horrifying moment a kayaker is swallowed whole and then spat out by a 50ft humpback whale.
As he paddled towards him while the whale disappeared from view, he continued to urge him: "Stay calm, grab my rope, grab my rope, if we head for the shore everything will be fine" before steering him away from the area.
With the force of the whale's jaws, Adrian tipped onto his left side and was taken into the depths by the closing mouth and torrent of water.