His ideas are disputed and there is debate about whether the site is completely natural; a natural site that has been modified or a man-made artefact. 27 photos, EXPEDITION YONAGUNI! Intersting, Yonaguni: the Underwater Pyramids of Japan. 1 monument is located at a depth of about 30 meters (approximately 100 feet). Interview with detailed bio. Underwater Ruins at Seismological Lab. at Spiegel TV, Broadcast: 5/18/2004 at Weather Underground - Japan. Sorry, but the thread is beyond my English for me to translate, but it is very interesting, as I noticed almost no other academic scholars publish study on the monument. He suggests that after construction, tectonic activity caused it to be submerged below sea level. West explores evidence of a sophisticated science behind the unexplainable accomplishments of Ancient Egypt, the inheritor of knowledge from an even earlier civilization? In a report given to the 21st Pacific Science Congress in 2007, he revised this estimate and dated it to 2,000 to 3,000 years ago because the sea level then was close to current levels. Most detailed analysis I can read on the Internet so far, using photos found on web sites, EXCEPT analysis by a Japanese on archeology thread above link. Possible Cultural Context and Significance Volume: 2,  On page(s): 947- 953 Vol.2 Kimura believes he has identified traces of animal drawings and people engraved into the rocks, including a horselike sign he believes resembles a character from the Kaida script. When were underwater ruins off Yonaguni created? by Mazaaki Kimura 2000 ISBN: 4883970582, History's Mysteries: Japan's Mysterious Pyramids DVD Photos at Mr. Aratake's hotel. -Graphics of No.1 monument (Iseki Point) circulated are scaled horizontal to vertical 2:1 in most cases, and angles are not accurately scaled. Yonaguni Monument by Okinawa Prefectural Government. by Yonaguni-cho Use the HTML below. Here is Professor Masaaki Kimura's latest position on the ruin I could find (No softening of his position as I read somewhere. The structure contains a cliff, which resembles the side of a stepped Incan pyramid. by Peter Hadfield, 27 November 1999 1 monument is approximately 200m in length, 150m in width, and 20-25m in height. SF, yes, you got it right. Yonaguni Monument. Interesting points: According to a link below. Ancient American Magazine editor Frank Joseph reports, Underwater Pattern - Yonagumi Japan Reporter: Mark Simkin by NK ( - Graham Hancock - Back from Taiwan and Japan - Japan's Mysterious Submerged Stone Structures - Japan's Underwater Ruins: Español - Mapas. by Robert M. Schoch 1999, The mysterious underwater pyramid structure at Yonaguni