Japanese Navy!

The deep-diving scientists of the University of Hawaii have discovered another monster lurking in the waters off Oahu.
During test dives Thursday, the Hawaii Undersea Research Laboratory's Pisces submarines found the remains of the Imperial Japanese Navy's I-401 submarine, a gigantic underwater aircraft carrier built to bomb the Panama Canal.
"We thought it was rocks at first, it was so huge," said Pisces pilot Terry Kerby. "But the sides of it kept going up and up and up, three and four stories tall. It's a leviathan down there, a monster."
It is not the first World War II-era "monster" that the HURL scientists have found. Last year, off Pearl Harbor, they located the wreck of the gigantic seaplane Marshall Mars, one of the largest aircraft built and used as a transport plane by the U.S. Navy. Two years earlier in the same area, the HURL crew also found the wreckage of a Japanese midget sub that was sunk on Dec. 7, 1941.
The latest HURL discovery is from the I-400 "Sensuikan Toku" class of submarines, the largest built prior to the nuclear ballistic missile submarines of the 1960s. They were 400 feet long and 39.3 feet high, could reach a maximum depth of 330 feet, and carry a crew of 144.