This film is a pretty bland Japanese offering. Basically the plot goes like this: Some people find dinosaur eggs around Mount Fuji, and then the chase is on for the dinosaurs. It takes Loch Ness and moves it to Japan. There's a festival going on with probably the worst country and western band ever providing the music. (When I think of country music, I really don't think of Japan.) The later half of the film focuses on a male and female diver who dive into the lake just before they close it off and throw depth charges into the lake. They go through hell to get out of the danger, and in the end, you end up not caring.
Avoid this one if possible.
Avoid this one if possible.