Before leaving North America from Seattle, he obtained employment at the American Embassy in Tokyo so that he had paid work waiting for him on his arrival.
He used pine torches, mapped the extensive system of caverns, and reported his findings to the Royal Geographical Society in Britain.
While in America he was impressed with the system of National Parks there so he urged the authorities to advertise the whole area, and years later the entire cave was illuminated and a cement path provided, and the Emperor on his state visit named it "Shuhodo".
His most significant teaching was at Hitotosubashi University where many of the members of the Japanese Foreign Office (Gaimusho) learned English from Edward.
In 2007 the Japanese Government published a postage stamp with Mr Gauntlett's portrait on it, commemorating his pioneering of Esperanto in Japan.
[citation needed] There is a small museum near Okayama Railway Station (JR) that commemorates the introduction to Japan of Table Tennis by Edward Gauntlett (Japanese name, Ganto Tadashi) and Yamada Kosaku.
Being musically gifted too (he was related to the composers William Henry Monk and Henry J Gauntlett, composer of the tune to the Christmas carol "Once in Royal David's City" among other works), he was an organist at the Hongo Central Church, which boasted Japan's biggest pipe organ at the time.
J. O. Gauntlett also gave a set of lectures on teaching English as a foreign language at Nanzan University in Tokyo, that were edited by James A. Noonan and then published as a book by MacMillan Press.
He also received the Order of the Rising Sun (see photograph) and was given the civilian rank of Chokunin (literally "Close Friend") and became an official advisor to the Japanese Foreign Office (Gaimusho).