How did I not know this was a thing?
This is actually local to me, but I hate going to anime conventions these days because nobody wants to watch anime together.
If you have any general non for profit conventions around they at least used to have a standard 24hour movie room and 24hour anime room. Near me one of the rooms would do godzilla for the wee hours.
Looks interesting for those folks in the SF Bay Area.
I can only imagine that there are lots of unique challenges that come from trying to host an event like this on a warship, even if its now a museum. The narrow corridors and steep stairs combined with what looks to be a big focus on cosplay might prove challenging. That being said, if you are doing a military-style cosplay, that could be an excellent place to stage some photos.