Japan National Tourism Organization(JNTO) has aanounced the winners for the "Japan Underwater Photo Contest 2020"

https://www.japan.travel/diving/en/photo-contest2020/

Pinnacle Diving Company has been added to the shop list. They operate from Kanagawa Prefecture near Camp Zama(US Base). The have dicing trips to the anto region and also can arrange diving trips to suit your needs.

Umiushi Hunters (Nudibranch Huters) information added for Jyogashima Island.They specialize in Nudibranch from 1mm. If your a underwater photography looking for nudibranch in Japan, they are the shop to visit.

Japan’s diving scene used to be a well-kept secret, but more and more people have realised that Japan has much more to offer than just sushi and karaoke. The country spans a vast latitudinal range, from the tropical south where coral reefs dominate around Okinawa and the other Ryukyu Islands, into the almost subarctic north. As a result, its biological diversity is great, with many different habitats accommodating a wide array of species.

https://xray-mag.com/pdfs/articles/Travel_Hachijo_Japan_RichardSmith_10…

This was an article published by Xray Magazine September  2020(Issue 100)

Year 2020. The coronavirus pandemic has confronted the world with an unprecedented situation. Many countries went into lockdown, and as a result, many people were forced to stay indoors, including myself in Japan. Although Japan never went into an official “lock- down”—it instead went into a so-called state of emergency— I could not wait to get out of the Tokyo metropolis as soon as restrictions were lifted.

https://xray-mag.com/pdfs/articles/Travel_Miyakojima_Japan_MartinVoelle…