Fast-forwarded sunrise shot on the coast of Okinosu in Tokusima prefecture.
From fall to winter, when the sea surface is exceedingly warmer than the cool layer of air above it, the temperature difference causes a mirage. Just as the sun rises above the horizon, a second sun appears, forming the shape of the Greek letter omega (Ω). This phenomenon can only be seen under certain conditions, and is thought to bring good fortune to the lucky observer.
Underwater: manta rays, the most graceful swimmer in the Okinawa oceans
Drone shot: autumn at Onuma Quasi-National Park in Hokkaido
Amazing rocket launch moments in Japan
Festivals in Japan: Aomori Nebuta Festival
Underwater: northern sea lions flock to a tiny island