This location-related GPS data set for a Whooper Swan Cygnus Cygnus, tracked in Japan in 2016. The swan was attached with GPS at the Uchinuma Pond, Miyagi Prefecture, northern Japan. It moved south to Otsuka Pond, Ibaraki Prefecture, where it over-wintered. It then moved to southern Sakhalin via Tokachi, Hokkaido, in March 2017. As it entered Sakhalin, Russia, the swan went out of the GPS-tracking coverage area, and we could not follow the route further north.