A Japanese geologist discovers that dinosaurs still exist in caves beneath the surface of a volcanic lake.

Cast:Tsunehiko Watase, Shōtarō Hayashi, Yōko Koizumi, Tomoko Kiyoshima, Fuyukichi Maki, Kinji Nakamura,

Genre:Science Fiction, Horror,

country:Japan,

Production:Toei Company, Toei Studios Kyoto,