Ikebana (Flower Arranging)
Japanese flower arranging is widely practiced and there are many local groups. Different schools exist within the field, and many offer information, classes and certification in English.
Origami (Paper Folding)
Origami has spread around the world as a cultural activity, but being in the home of Origami provides you the opportunity to see and learn from true masters.
(original photo by Tokyoni; Public Domain)