Minakami Onsen in Gunma Prefecture, is the source for the Tone River, Japan's biggest river. During the Spring melt, April - June, the river provides consistant grade 4 rapids for over 12kms of whitewater rafting bliss. There are a number of different courses available to cater for all levels, from nervous beginners to experienced rafting junkies. Canyons international team of professional guides will ensure you a safe and memorable day of rapid action.

Three years ago the same section used for commercial rafting played host to the rafting world cup qualifying tournament. Teams from around the world came to challenge the mighty Tone River. The Tone will next be hosting the rafting wolrd cup in Spring 2007.

Make sure you get up in Spring for the best rafting in Japan. April - June is the Spring melt season, with the river flowing high to produce world class rapids. There are three canyons that are regularly run, Suwakyo, Minakamikyo and the infamous Momijikyo, the later of the three being the most intense.

Shikoku's Yoshino River is a whitewater rafters paradise with over 30kms of grade 3-4 raipds flowing through the famous scenery of Oboke and Koboke gorges. During the "green" season, May - October, the river provides consistant high flows which allows a selection of a thrilling halfday course or a more relaxed one day section.