There is a rocket launch from Tanegashima Space Center (TNSC) (originally scheduled for December 21 according to tweets from TNSC and Inmarsat Global). According to the websites of Mitsubishi Heavy Industries and the website of a town in Tanegashima, however, the launch day has been rescheduled to December 22, and the launch window is 23:33:52 - 01:33:26 Japan time. The timing specified matches that from Everyday Astronaut, but Everyday Astronaut still says December 21 for the day. TNSC has tweeted confirming the rescheduling.
I'll be staying in Kirishima, in Kagoshima prefecture on Kyushu island, during December 21 - 23. Tanegashima is an island off the coast of Kyushu. Travelling to Tanegashima itself is out of the question, as that will likely entail staying overnight there due to ferry timings.
Is there anywhere (open for access during the launch window) on the island of Kyushu itself from where I can watch the launch? I assume I won't be able to see much more than a shining beacon rising through the night sky, given the distances involved (70-100km, I think?).
I will be renting a car, so I don't need to rely on public transport.