Polar circle is an Ice breaking tug. the ship was previously under contract to a Russian Oil and Gas Company, but with sanctions due to Russia’s invasion of Ukraine, the owners cancelled the charter.
The Polar Circle was built in 2006, and is registered in Cyprus.
The ship sailed through the Panama Canal, and was last in New York, sailing for Halifax September 21 to Halifax. Given the ship has no work, they took a leisurely sail, arriving Oct 7th. After spending a day alongside, the tug move to anchor in the basin, where it is presumably looking for employment.