Lake Ashi Summer Festival Week - Kojiri Ryujin Festival Fireworks Festival: Fireworks are launched while a powerful sacred fire is lit on the lakeside
About 2,200 fireworks rise over the small Kojiri Bay on the north side of Lake Ashi for 20 minutes from 20:00 on August 4, held as the Ryujin Festival honoring the lake's guardian deity, Kuzuryu Okami — night five of the Lake Ashi Summer Festival Week. The enclosed little bay bounces light and sound off the surrounding mountains for a feel unlike the other lake displays. The shrine rites held by day are not open to the public; the show is the public part. Kojiri is about 45 minutes by bus from Hakone-Yumoto Station.
Kojiri is a quiet stretch of shore on Lake Ashi's north side, where the fireworks follow the shrine rites at Kuzuryu Shrine — rites that are not open to visitors, so the evening display is what the public comes for. The small bay gives the 20-minute show a concentrated acoustic character, the 2,200 shells echoing off the mountainsides. The week's fifth night falls on August 4. Buses run about 45 minutes from Hakone-Yumoto Station to the Kojiri stop (or 40 minutes to Togendai plus a 10-minute walk), and while a 200-space lot exists (1,000 yen per visit, partly free), the mountain roads argue for the bus at night.