Later this year I will take my nephew (he is 19) to Tokyo for a week. We will spend most of the time together but I am considering having one or two afternoons were each goes his own way (I am interested in Martial Arts and ShoDo, he is more on the Manga/Anime/Action Figures camp).
I am 55, 3rd Dan in Aikido (25+ Iwama Ryu, 3 years closer to Aikikai since I moved to Germany, still practicing 3/times a week - I consider myself still fit enough for ukemi etc.).
If I were alone, I would either go straight to Hombu Dojo (as I did back in 2013) or visit a local dojo fairly regularly (like I did in Kyoto in 2016, where I went to Yoko Okamoto sensei's dojo for 4 or 5 sessions over 12 days).
Considering I will not have much time available, what would you suggest? I am perusing www.govoyagin.com to see what they can offer (e.g. https://www.govoyagin.com/activities/japan-tokyo-join-a-shinkage-ryu-bujutsu-martial-art-workshop-tokyo/8280 looks interesting) but maybe someone here can suggest less-known alternatives?
I realize that "one afternoon" is not enough time for, well, anything. I am also aware that most of the Voyagin stuff is probably designed for tourists with very casual interest in martial arts (and they may probably prefer flashier stuff like ninjutsu or stage fighting in Samurai garb).
I am open to try something different from Aikido, of course, but I would prefer either grappling styles like JuJitsu, or any traditional weapon style (in other words, I am not much into Karate or any striking-oriented art - I hope to find something were I can leverage my own Aikido experience a bit, and hopefully take back home at least one tiny technical nugget).
I can of course bring a Keikogi with me, my hakama, and I have zero problems in donning a white belt (I consider myself a beginner in anything which is not Aikido and I hope not to have any ego issue about that).
So, taking in account all this, what would you suggest?