From the article:

No fewer than four walruses have wandered over to Iceland so far this year. Walruses are not native to the country but since the start of this year, individuals have made stops in East Iceland, the Westfjords, Northwest Iceland, and the capital area. Walruses can be dangerous and readers are warned against approaching them.

Last Thursday, archaeologists working on a dig in Arnarfjörður in the Westfjords spotted a walrus out in the water. It was later spotted sunning itself on the shores of the fjord near Hrafnseyri, RÚV reports, and stayed on into the weekend. Just a few days earlier, a different walrus made himself at home on a floating dock in Sauðárkrókur harbour in Northwest Iceland…In early June, a staff member of the Marine and Freshwater Research Institute in Hafnarfjörður, in the capital area, was accompanied by a walrus on his morning commute…Yet another walrus spotted in Breiðdalsvík, East Iceland in February turned out to be celebrity walrus Thor, who had spent the winter sightseeing around the UK with stops in the Netherlands and France.

Walruses seen in Iceland generally arrive from the shores of Greenland or from northern Norway, but Thor may have travelled from the Canadian Arctic. There were no indications that any of the four walruses were the same animal.

More walrus visits have occurred in Iceland over the past few years. One was spotted on June 17, 2022 in the town of Reyðarfjörður, East Iceland. A GPS tag on the animal revealed that it had swum over from the Faroe Islands. In September 2021, a walrus spotted in Höfn, Southeast Iceland turned out to be Wally the Walrus, who had been previously spotted in Spain, Wales, and the Isles of Scilly (off the UK coast). Wally had last been seen in Cork, Ireland before being spotted in Iceland, meaning he had swum over 1,000 km [620 mi] to reach the island.