The rainy season comes to Japan every June, bringing a month of wet to most of the country. This is a blessing to not just the nation’s crops and the people they feed, but also to the flora and fauna that need it.
If you’re traveling during this season, one particularly striking highlight—even on rainy days—is the water-loving hydrangea blooms. Mikaeri Falls watches over a lush valley covered in flower gardens that run downstream to the parking area. Bring your poncho and something to keep your camera dry for the Hydrangea Festival.
If you read Japanese, here's the Hydrangea Festival website: http://ouchi.fhl.ne.jp
For 2014, the festival is on from June 7-29.