In Nishiwaga Town, Iwate Prefecture, from July 1 (Wed) to September 30 (Wed), the "Kinshukoko Grand Waterfall General Opening," which allows visitors to walk behind the waterfall, and the "Kinshukoko Grand Waterfall Light-up," certified as Japan Night View Heritage (Light-up Night View Heritage) for the first time as a dam facility, will be held. The grand waterfall, viewed up close by passing through the normally inaccessible interior of the dam, is an extraordinary space filled with mist, roaring sounds, and cool air. It is a popular spot representing Nishiwaga, where you can feel cool even in the summer. At night, LED lights will colorfully illuminate the waterfall, creating a fantastical landscape different from the daytime. Furthermore, on July 18 and 19, events to enjoy beer, forest culture, and Kinshukoko Grand Waterfall will be held in various locations around the town. Nishiwaga's summer begins, allowing you to enjoy the rich nature during the day and the fantastical scenery and liveliness at night. "Kinshukoko Grand Waterfall General Opening" and "Kinshukoko Grand Waterfall Light-up" Overview Event Period: July 1, 2026 (Wed) - September 30, 2026 (Wed) - General Opening: 9:00 AM - 4:30 PM - Light-up: July 1 - August 31: 6:30 PM - 9:00 PM September 1 - September 30: 5:50 PM - 9:00 PM *General opening and light-up may be canceled or changed due to weather or dam water levels. Left: [Kinshukoko Grand Waterfall General Opening] Experience the cool interior of the dam and the powerful waterfall up close during the day. Right: [Kinshukoko Grand Waterfall Light-up] At night, the waterfall illuminated by LED lights shows a fantastical expression different from the daytime. [Seasonal Color Light-up] In addition to the regular rainbow light-up, special color light-ups will be held for a limited time. August 3-9: Blue light-up inspired by "Water Day / Water Week" September 18-23: Orange light-up to coincide with "Dementia Awareness Day" Blue light-up inspired by "Wate