Ice, ice, granny: Grandmother floats away during photoshoot

Texas grandmother Judith Streng, 77, posed on the 'ice throne'. Photo / Supplied

A grandmother got more than she bargained for when she posed on a chunk of ice while holidaying in Iceland.

Judith Streng, 77, from Texas, was visiting Iceland's Jökulsárlón Lagoon with her son recently when they came across the chunk of frozen water shaped like a throne on the beach.

As she sat on her "Iceberg Throne", a large wave dislodged the icy chair, and to her horror she was sent drifting away from shore.

Streng was swept out to sea when a large wave came along and carried her off. Photo / Supplied

Earlier this week, Catherine Streng received several text messages and photos from her father about his trip to Iceland with his mother, detailing the grandmother's misadventure.

Streng shared the near-disastrous tale of her grandmother on social media and the images went viral.

"My grandmother almost got lost at sea in Iceland today," Streng wrote, alongside some photos.

"Iceberg queen," reads the photo caption her father crafted.

Another image shows the elderly woman, still sitting on the iceberg, floating away into the Icelandic waters.

"Lost her kingdom when she drifted out to see! [sic]," reads the photo caption.

The woman was rescued by another tourist nearby, who happened to be a boat captain, as he waded into the water to grab the grandmother.

'Iceberg queen,' reads the photo caption her father crafted.

'Lost her kingdom when she drifted out to see [sic].'

Streng shared the conversation she had with her father about the incident with Storyful, and explained to the news service exactly how the entire situation unfolded.

"It was shaped like an easy place to sit... I thought that looks like fun," Streng said in an interview on Good Morning America of the moment she decided to pose.

"When I got on it started to totter and a wave was coming in, a very large wave came in and made the throne kind of rock and I could tell I was slipping off.

"I thought it was safe. I don't weigh very much so it was a little easier to float off I guess.

"I've always wanted to be queen... that was my chance."