https://www.tokyuhotels.co.jp/en/matsue-e/index.html
You will be able to reserve the Matsue Excel Hotel Tokyo through the ICMTS registration site when it opens.
The banquet will be held on Yuushien.
https://www.yuushien.com/language/en.html
Izumo oyashiro shrine https://izumooyashiro.or.jp/en/
or
Adachi museum of art https://www.adachi-museum.or.jp/en/
https://www.visit-matsue.com/access/by_plane
https://en.matsue-cvb.jp/access
According to WeatherSpark.com, for the week of ICMTS the average high temperature in Matsue is 12C/54°F and the average low temperature is 8C/46°F. Historically, it has rained about only 33% of the time. Total rainfall in March is 97mm (3.8in).