A 17-metre fin whale carcass has washed ashore at Shinborihama in Sosa City, Chiba, after it was discovered dead on September 19.
The footage shows the decomposing whale being rocked by waves, with its swollen red tissue moving as the carcass is battered by the surf.
Local authorities have warned people against approaching the rotting carcass, while its removal was delayed due to typhoon conditions.