The venue, EPOCHAL Tsukuba, is described at the URL;
https://wao2023.kek.jp/venue/index.htm
Brief overview of the transportation is;
Bus services are direct to Tsukuba without changes. However, train services are more frequent. Some more details on buses and trains are provided at the URL;
https://www2.kek.jp/rso/eng/Access/TsukubaCenter.html
Bus service from Narita airport (NRT) to Tsukuba station
https://www2.kek.jp/rso/Access/pdf/NaritaAirport.pdf
From Haneda airport (HND) to Tsukuba station
https://www2.kek.jp/rso/Access/pdf/HanedaAirport.pdf
