What Traditional Japanese Culture Would You Like to Learn?

I'd love to be part of a club where I could learn some traditional plant growing, harvesting, and cooking. Learning Japanese calligraphy (shodo) and previously flower arranging (Ikebana) is great too. I've always thought it would be awesome to learn bamboo crafts, more than a short experience making a small already prepared basket. I'm wondering what you'd be interested to learn that is in danger of disappearing if young people (including foreign residents) don't learn it. There are small local efforts to teach students how to grow and harvest rice for a seasonal example. It's a tiny experience that could influence the future supply of an important staple food. I've never had the chance but that would be great and potentially helpful to local farmers.