There are a number of things different about the style and diving manner in Japan. This is a basic guide covering some of the main differences and topics you'll find...
The English guide to diving in Japan
Dive in Japan is the comprehensive guide in English for diving in Japan, featuring detailed information on diving shops and destinations as well as unique insights into the Japanese diving scene. Operated by the Non Profit Organization "Japan Diving Experience" to promote overseas divers to visit Japan, Dive in Japan provides support and assistance with a dedicated DiveMaster available to arrange your Japanese diving experience.
Please enjoy!
Useful Articles for Diving in Japan
JAPAN AIRLINES & SCUBA SHOW DISCOUNT CODE
Japan Airlines with Japan National Tourism Organization will be at the SCUBA SHOW LOS ANGELAS on 6/1,6/2
Japan Airlines released "Dive like the locals:Basic diving plan" for Tokyo Shark diving
Japan Airlines releases "Dive like the locals:Basic diving plan" for Tokyo Shark diving.
The plans offered are,
・Chiba Ito Japanese Hound Shark Diving
・Mikomoto Hammer Head Shark Diving
The optional plan price is the same as the local divers are offering to the local divers.
Choose the optional plan with 【Dive like the locals:Basic diving plan】title
URL: Choose the country you are from. Or Choose the US/Canada site and pay with USD.
New Shop Added "DiveNetworks" in the Tokyo area.
DiveNetworks is now added to our NPO family list. They specialize in TEC diving and also fun diving. You can support Spanish speaking guests.
New Shop Added "Tokyo Frogs" in the Tokyo area.
Tokyo Frogs is now added to our NPO family list. They have many weekend diving tours going to destinations around the Greater Tokyo area.
Japan AiRLINES ANNOUNCES "Diving Dynamic Package" to Japan for FY2023
https://www.jal.co.jp/ar/en/guide-to-japan/experiences/diving/index.html (sample link for US, please go through your country page)