Hi all,
There is a lack of English information on Japan thus I am posting some Izu dive maps found in The Internet.
Dive Japan: Maps of Japan - Diving Destinations
In addition to diving services written above website, JUE is actively operating.
:: Japan Underwater Explorers :: Tokyo, Izu, Kobe, Kansai, Hiroshima..
I know I am replying to an old thread but trying to improve English information about diving spots in Japan again. The above links are broken and outdated.
Some more current resources include the excellent blog of Bonnie
https://bonniewaycott.wordpress.com/
and someone made an effort to document quite some Japanese sites including the Izu peninsula on the Diveadvisor map
A Directory of Dive Sites for Scuba Diving in Japan | Dive Advisor
Diveadvisor looks cool and I would encourage people to add sites that are not already listed there. The PADI Japan website maybe is more extensive but only in Japanese (?????????????)
Cheers,
Ben