The Ome City Nohryo Fireworks Festival features 3,801 fireworks to be hurled into the night sky over Nagayama Park in Ome City in the evening of of the first Saturday in August. The festivities will begin at 7:30pm and conclude at 8:40pm.
There is paid setting for ¥5,000 or ¥6,000, but you can grab a spot anywhere outside the official viewing area for free.
The closest station is Ome Station on the JR Ome Line (10 min walk). To get there, take a Chuo Line train from Shinjuku Station and change to the Ome Line at Tachikawa.