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.
- http://www.iruka-hotel.com

Mar Scuba
- Information about scuba diving in Japan especially for non-Japanese. Includes PADI scuba diving courses, Tokyo/Izu diving areas, tips and hints.
- http://www.marscuba.com/

Dive Japan
- Links and information on scuba diving in Japan.
- http://www.divejapan.com/

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.
- http://www.blueoceanscuba.com/

Carte Marine
- Located in Yabiji, with information on instruction, charter boat, snorkeling, rates and reservations, accommodations, and contacts.
- http://www.cartemarine.net

Japan Diving
- Diving tours, trips and NAUI courses from beginner to instructor, in southern Japan, Kumamoto, Kyushu.
- http://www.japandiving.com

JOUJOU
- Scuba diving operator in Tsushima, Nagasaki.
- http://www9.ocn.ne.jp/~joujou/ed-00-index.htm

NASDS Japan
- National Association of Scuba Diving Schools.
- http://www.nasds.net