White-water rafting is more than an aquatic roller-coaster ride. Surging torrents and treacherous whirlpools threaten, while riverbed rocks bump violently against the small rubber boat. And there is always the chance that you could be thrown overboard and into the merciless current.
But just as danger is always around the corner, spectacular scenery is never far away. Look over your left shoulder and you might see a magnificent gorge covered with spring blossoms. To your right, you might catch sight of wild monkeys or a mountain goat.
Already a popular sport in countries such as Australia, New Zealand and the United States, white-water rafting in Japan has recently been increasing in popularity.