A HUMPBACK whale briefly swallowed a kayaker off Chilean Patagonia before quickly releasing him unharmed. The incident, caught on camera, quickly went viral.

Last Saturday, Adrian Simancas was kayaking with his father Dell in Bahia el Aguila near the San Isidro lighthouse in the Strait of Magellan when a humpback whale surfaced, engulfing Adrian and his yellow kayak for a few seconds before letting him go.

Dell, just yards away, captured the moment on video.

“Stay calm, stay calm,” he can be heard saying after his son was released from the whale’s mouth.

“I thought I was dead,” Adrian said. “I thought it had eaten me, that it had swallowed me.”

He described the “terror” of those few seconds and explained that his real fright set in only after resurfacing, fearing that the huge animal would hurt his father or that he would perish in the chilly waters.

Despite the terrifying experience, Dell remained focused, filming and reassuring his son while grappling with his own worry.

“When I came up and started floating, I was scared that something might happen to my father too, that we wouldn’t reach the shore in time or that I would get hypothermia,” Adrian said.

After a few seconds in the water, Adrian managed to reach his father’s kayak and was quickly received help. Despite the scare, both returned to the shore uninjured.

Located about 1,600 miles south of Santiago, Chile’s capital, the Strait of Magellan is a major tourist attraction in the Chilean part of Patagonia, known for adventure activities.

Its frigid waters pose a challenge to sailors, swimmers and explorers who attempt to cross it in different ways.

Although it’s summer in the southern hemisphere, temperatures in the region remain cool, with lows of 4°C and highs rarely reaching 20°C.

While whale “attacks” on humans are extremely rare in Chilean waters, whale deaths from collisions with cargo ships have increased in recent years and strandings have happened repeatedly in the last decade.