I’ll be holding a Zen meditation retreat at Tokei-in temple on the outskirts of Shizuoka City from May 1 to 3. The retreat is in English and is suitable for beginners. The cost including meals and accommodation is 10,000 yen. So if you'll be in Japan around then and are interested in spending a few days at a temple and trying some Zen meditation, feel free to come along.
There’s some more information at: http://www.zen.ie/retreat.html