20,000 Leagues Under Reality: Contains links and information on diving in Japan.
Blue Ocean Scuba: Information on diving, dive shops, trips, and classes in the Misawa area in the northern part of the country, by a local instructor. Also includes a photo gallery.
Carte Marine: Located in Yabiji, with information on instruction, charter boat, snorkeling, rates and reservations, accommodations, and contacts.
Dive Japan: Links and information on scuba diving in Japan.
Dolphin Hotel: Description of ice diving and scuba diving services located in Shiretoko, a northern peninsula of Hokkaido Island. Photo gallery, rates and contact details included.
Japan Diving: Diving tours, trips and NAUI courses from beginner to instructor, in southern Japan, Kumamoto, Kyushu.
JOUJOU: Scuba diving operator in Tsushima, Nagasaki.
Mar Scuba: Information about scuba diving in Japan especially for non-Japanese. Includes PADI scuba diving courses, Tokyo/Izu diving areas, tips and hints.
NASDS Japan: National Association of Scuba Diving Schools.