CheeseWhiz
Contributor
I didn't see the program you are mentioning, but it sounds very similar to a site mentioned in a book by Graham Hancock, Underwater: The Mysterious Origins of Civilisation .
In addition to the Japanese site, he surveyed some off the coast of India, the island of Malta and in the Maldives. According to his theory, the origins of civilization might have existed several thousand years earlier than contemporary thought allows. These early cities/temples/whatever were located near the ocean's shore, at the end of the last ice age, when ocean levels were significantly lower than now. Mr. Hancock has uncovered some circumstantial evidence that the end of the last ice age was cataclysmic, with ocean levels rising very rapidly over a very short period (several years).
Whether you subscribe to his theory or not (and he admits he has not come up with concrete scientific evidence that these structures are man-made), it's an interesting read.
In addition to the Japanese site, he surveyed some off the coast of India, the island of Malta and in the Maldives. According to his theory, the origins of civilization might have existed several thousand years earlier than contemporary thought allows. These early cities/temples/whatever were located near the ocean's shore, at the end of the last ice age, when ocean levels were significantly lower than now. Mr. Hancock has uncovered some circumstantial evidence that the end of the last ice age was cataclysmic, with ocean levels rising very rapidly over a very short period (several years).
Whether you subscribe to his theory or not (and he admits he has not come up with concrete scientific evidence that these structures are man-made), it's an interesting read.