If your talking about the segment beginning at 2:47, that would be on the island of Ponape, near the town of Kolonia. The island was bypassed by the Americans, so the Japanese tanks never saw action(likely explaining their "great condition"). The owners of the property decided to level the hillside, where the Japanese tanks were left at the end of the war, and rediscovered them. One of the Type 95s, a company commander's tank, is currently undergoing restoration to full working order. The owners have already restored a Type 97 to running condition. More: http://www.pacificwrecks.com/provinces/fed_kolonia.html http://www.pacificwrecks.com/tank/type95-ha-go/adams.html http://www.pacificwrecks.com/tank/type97-te-ke/adams.html
The first group, beginning at 2:24-25, is located on the island of Satowan/Satawan(I've seen both spellings), and is a group of 6 Type 95s.
Japanese tanks were buried so they wouldn't be seen from the air- and dug up when needed, buried as pillbox's, or buried to dispose of them?
I find it even more amazing that all of them haven't been completely stripped of all armament... Several machine guns visible.
Strange to see in magazines, books and box art , the so elaborate and rich camo patterns, but at 1:17 of the Youtube clip (seems original colours!) and the rather fantasy colours of the restored tank on http://www.pacificwrecks.com/tank/type97-te-ke/adams/2002/town3.html#axzz3MdMyL8X0 a much uglier pattern. :/ what is truth ?