Zircon’s satellite device ceased transmissions on May 17, 2023 when this solitary individual was in the Scotia Sea, north of the Islas Orcadas del Sur (South Orkney Islands). To reach this highly productive area, Zircon had traveled more than 20,800 kilometers (12,925 miles) over 250 days, which was the farthest distance traveled by any of the whales monitored during the 2022-2023 season.

Zircon initially traveled north from Golfo Nuevo, at first bordering Peninsula Valdés and Golfo San Matias, then crossing the continental shelf until reaching the continental slope. Zircon then followed the ridge up to latitude 37°S, and then abruptly turned south, moving to the Blue Hole off the coast of Chubut. He spent two and a half months over the continental shelf, and in January 2023, Zircon began his trip to the icy waters of the Scotia Sea. After circling the Islas Orcadas (South Orkney Islands) in a clockwise direction, he continued traveling through this zone until contact with his device was lost.