Living on the wonderfully spacious and green Shikoku, I frequently enjoy many outdoor excursions, visits to onsen (yes, we have a few here), and spend countless hours in the great surf. The main problem is that nobody seems to bother cataloging anything on Shikoku!
I, along with others living in the area, have put together a map cataloguing some of the opportunities in and around Tokushima. Enjoy!
http://www.communitywalk.com/map/5540
Favourite destinations and activities that I think are worthy of drawing people to this area of Japan are the Iya Valley (aka, where Alex Kerr found his mojo), the Kaifu beaches (great surfing), and paragliding through the mountains.