Once the late-May evenings turn just warm enough to step outside without a jacket, something quiet happens in Tokyo’s gardens and tucked-away streams. A pale, slow-floating light drifts low over the grass. Another joins it. Then a dozen. These are hotaru—fireflies—and from late May through late June (with some venues running into early July), they put on one of the city’s most unexpected shows.
If your Japan trip lands anywhere between late May and early July, this is a night you should pencil in. Here are five spots in and around Tokyo where you can see fireflies in 2026, plus a few small rules that’ll make the evening better for you—and for the fireflies.
1. Hotel Chinzanso Tokyo (Bunkyo-ku) — fireflies in a luxury hotel garden
If you only do one firefly night in Tokyo, this is the obvious choice. Hotel Chinzanso’s expansive hillside garden in Bunkyo-ku comes alive with many Genji fireflies each early summer. Access is about a 10-minute walk from Edogawabashi Station on the Tokyo Metro Yurakucho Line; from JR Mejiro Station, a city bus or short taxi ride is easiest. For 2026, the “Hotaru no Yube Dinner Buffet” (ほたるの夕べ ディナービュッフェ) runs on select dates between Sunday, May 17 and Tuesday, June 30, with three seatings each night: 6:00–8:00 p.m., 6:30–8:30 p.m., and 7:00–9:00 p.m. Pricing is ¥14,200 on weekdays and ¥16,300 Friday through Sunday for adults, ¥6,700 for elementary-school kids, and ¥4,100 for small children from age three. One important note: after 6:30 p.m., garden entry is restricted to overnight guests, restaurant-and-event patrons, and visitors with a garden admission ticket, so check the official site for current conditions before you go.
Want something quieter? The hotel also offers a “Private Hotaru Night” (プライベートホタルナイト) overnight package between May 23 and June 7—limited to just three parties per night, dinner and breakfast included, from the upper ¥110,000s per room for two. After the garden’s usual closing time, guests on this plan alone are escorted in for late-night firefly viewing. It’s pricey, but for a special occasion, it’s hard to beat. Note: pricing and availability change, so confirm on the official site.
2. HANA・BIYORI (Inagi City) — a relaxed garden experience next to Yomiuriland
For something a little more out-of-town and family-friendly, head to HANA·BIYORI, the flower-and-light garden next to Yomiuriland in western Tokyo. The 2026 “Hotaru Biyori” (ほたるびより) evening event runs from Saturday, May 23 through Wednesday, July 1, with the park staying open into the night specifically for firefly viewing (closed on May 25–28 and June 11). You walk along a designated waterside viewing area, and through mid-June you’ll mainly see Genji fireflies; after that, the softer-glowing Heike fireflies take over—so the show actually shifts in character depending on when you go.
Entry is by time-slot reservation, with viewing from 7:40 to 8:30 p.m. (extended to 9 p.m. on weekends). Firefly tickets are ¥400 (free for kids under elementary age) on top of the HANA・BIYORI admission (¥800 for middle schoolers and up, ¥500 for elementary). Staff also give a short 20-minute talk about firefly ecology each evening—useful if it's your first time.
3. Fussa Firefly Festival (Fussa City) — fireflies with festival snacks
If you’d rather pair your fireflies with the classic Japanese summer-festival feel—street food, lanterns, that whole atmosphere—Fussa, on Tokyo’s western edge, throws an annual firefly matsuri (福生ほたる祭) along its small canal-side promenade. The 2026 edition is on Sunday, May 31, running from 3:00 p.m. all the way to 9:00 p.m. The action spreads across the Seseragi-dori path (from in front of Hotaru Park to just past the Welfare Center), Fussa Municipal Third Junior High School, and the Welfare Center grounds. You browse food stalls and local performances in daylight, then drift toward the water as dusk falls. Important: in 2026, entry to Hotaru Park during firefly hours requires a numbered admission ticket (seiriken) distributed from 5:00 p.m., with assigned viewing slots between 7:20 and 8:30 p.m. After 8:30 p.m., the park is open until 9:00 p.m. without a ticket.
Access is easy: Ushihama or Kumagawa Station on the JR Ome Line, both about an hour from Shinjuku. Bring cash for the stalls—and maybe a small hand fan, since the early evenings can already feel summery.
4. Otome-yama Park (Shinjuku-ku) — a longstanding firefly tradition in a spring-fed urban forest
Tucked into the Shimo-Ochiai neighborhood of Shinjuku, Otome-yama Park is one of central Tokyo’s last pockets of natural spring water and woodland. Local volunteers (the “Ochiai Hotaru wo Sodateru-kai”) have been raising local fireflies here for years, and the park has hosted small firefly viewing events in past summers—typically a one-night “Hotaru Kansho no Yube” in late July. As of publication, no 2026 dates have been officially announced, so check the Shinjuku city or Shinjuku Convention & Visitors Bureau site closer to your trip. Access is straightforward either way: about a 10-minute walk from Shimo-Ochiai Station on the Seibu Shinjuku Line, or from Takadanobaba Station on the JR Yamanote, Seibu Shinjuku, and Tokyo Metro Tozai lines.
5. Yuyake Koyake Fureai no Sato (Hachioji) — a countryside firefly evening in a satoyama setting
For travelers who’d rather be in the countryside than at a buffet, head out to Yuyake Koyake Fureai no Sato, a satoyama (traditional rural village) park in the Kami-Ongata area of Hachioji. The 2026 “Hotaru no Yube” runs from Saturday, June 6 through Sunday, June 21, with viewing each evening from 6:00 to 8:45 p.m. along the on-site stream and a section of the Kita-Asakawa River. The viewing fee is ¥200 for adults, ¥100 for children (ages 4 through junior high), and ¥100 for seniors—no reservation needed. From JR Takao Station or Keio Takao Station, take a Nishi-Tokyo bus and get off at “Yuyake Koyake,” about a minute’s walk from the park entrance. It takes a bit of effort from central Tokyo, but the payoff is a quiet rural night that feels miles away.
A few quiet rules
Fireflies are tiny, sensitive creatures whose entire mating ritual is about light. Camera flash is a hard no. Headlights, flashlights, phone screens—anything bright—should stay off while you're watching. Strong insect repellent can drive the fireflies away too, so a long-sleeved thin shirt is often a better choice than spraying yourself down. Streams and ponds are dark and uneven at night, so stay on the paths. And of course: don't catch the fireflies, don't trample the grass they live in, and leave nothing behind. The whole point is that they'll still be here next year.
The takeaway: a few weeks of magic in early summer
Firefly season is short—most spots are only good for two or three weeks. The window usually runs from late May through late June, though some venues (and the later-season Heike fireflies) can stretch it into early July. If your trip overlaps with this stretch, leave one evening unscheduled, head out to one of these spots after dinner, and let your eyes settle into the dark. A few minutes later, the night will start glowing. It’s one of the loveliest things Japan does, and almost no one warns you it’s there.
▶ Hotel Chinzanso Tokyo — Firefly Fantasy 2026 (official)
▶ HANA・BIYORI (official)
▶ Fussa Tourism Association — Firefly Festival
▶ Shinjuku City — Events Calender
▶ Yuyake Koyake Fureai no Sato — Hotaru no Yube
▶ Japan National Tourism Organization (visitor guide)
This article was translated from the original Japanese with AI assistance and reviewed by our editorial team. The Japanese version is authoritative.
