May and June are some of the most beautiful seasons in the Izu Peninsula, with fresh greenery and the gentle atmosphere of early summer.
After Golden Week, the area becomes a little quieter, making it the perfect time to relax and enjoy hot springs, café hopping, and nature walks at a slower pace.
This season is ideal not only for a one-night stay, but also for a longer, more relaxing trip through the peninsula.
In this article, we’ll introduce events happening across the Izu Peninsula — including Shuzenji — along with seasonal experiences you can enjoy during this time of year.
Shuzenji Area | The Best Season for Fresh Greenery Walks



- Best SeasonEarly May to late May
- Recommended spots include walks through the Bamboo Forest Path and along the Katsura River
- The mornings and evenings are especially quiet and relaxing
Highlights
This is the perfect season to enjoy a slower stay rather than busy sightseeing.
Highly recommended for those who want to relax with café hopping, reading, and soaking in hot springs.
May Events Around the Izu Peninsula
Hina no Tsurushi Kazari Exhibition | Higashiizu
Event Date & Time April 4th(Sat)~May 31st(Sun) 9:00~16:00
Location Bunka Park Hina no Yakata (文化公園 雛の館)
An exhibition featuring the traditional “Tsurushi Kazari” hanging decorations of Izu Inatori.
Colorful handmade ornaments fill the venue, making it a popular photo spot as well.
InformationInatori Onsen Tourism Association
The 87th Black Ship Festival | Shimoda
Event Date & Time May 15th(Fri)~17th(Sun)
One of Shimoda’s largest annual events, where visitors can experience the atmosphere of Japan’s late Edo period history.
The festival features parades, commemorative ceremonies, and the unique charm of this historic port town.
InformationBlack Ship Festival Official Website
Festa Makinoko | Izu
Event Date & Time May 17th(Sun)10:00~17:00
Location Makinoko Station Front Plaza (まきのこう駅前広場)
A local community event featuring regional food, handmade goods, and live music.
Perfect for visitors who want to experience the local atmosphere and connect with the community.
InformationFesta Makinoko Instagram
Baird Beer 12th Anniversary Festival | Baird Beer


Event Date & Time May 23rd(Sat)11:00~20:00 / May 24th(Sun)11:00~19:00
This year’s theme is: “Craftsmanship – Back to the Origins and Toward the Future”
A popular anniversary event for craft beer lovers, featuring limited-edition beers, food stalls, and live music performances.
InformationBaird Beer Official Website
Eurus Energy Kawazu Cup 2026 – Amagi Attack 35 | Kawazu
Event Date & Time May 23rd(Sat)~24th(Sun)
A popular trail running race through the beautiful natural landscapes of the Izu Peninsula.
Participants can fully experience the forests and mountain scenery of the Amagi area.
InformationAmagi Attack 35 Official Website
The 37th Banjo Falls Festival | Banjo Falls



Event Date & Time May 24th (Sun)10:00~15:00
A nature-themed event held around Banjo Falls, surrounded by fresh greenery.
Visitors can enjoy local food stalls and various community activities in a relaxing natural setting.
InformationShowa no Mori Kaikan
Atami Spring Sea Fireworks Festival | Atami



Event Date & Time May 24th(Sun)20:20~20:40
A popular fireworks festival held over Atami Bay.
The powerful fireworks and the sound echoing across the ocean create a truly unforgettable atmosphere.
InformationAtami City Tourism Association
Around the Izu Peninsula | Spring Flowers & Nature Events


・In the Kawazu and Minamiizu areas, roses and early summer flowers are at their best during this season.
・Fresh greenery hiking in the Amagi and West Izu areas is also especially popular in May and June.
・This is also the season when more local markets and weekend community events begin to appear across the peninsula.
初夏の風物詩|6月の伊豆イベント(ホタル・あじさい)
修善寺ほたるの夕べ|伊豆市
Event Date & Time 5月下旬〜6月上旬開催。
赤蛙公園周辺でホタルが見られる、修善寺初夏の人気イベント。夜の散歩にもおすすめです。
第24回 ほたる観賞の夕べ|東伊豆町
Event Date & Time 5月29日(金)~ 6月7日(日) 19:30~21:00(最終入園20:25)
Location 大川竹ヶ沢公園
幻想的なホタル観賞を楽しめる初夏の人気イベント。自然の中で静かな時間を過ごせます。
天城ほたる鑑賞|伊豆市
開催時期 5月下旬~6月中旬
Location 天城湯ヶ島温泉郷「出会い橋」
川沿いに飛び交うホタルを楽しめる人気スポット。温泉帰りの散策にもおすすめです。
More info 天城湯ヶ島観光協会
御朱印さんぽ 香運御朱印|東伊豆町
Event Date & Time 4月1日(水)~6月30日(火)
Location 済広寺・清光院・栄昌院・東泉院
東伊豆の寺院を巡りながら限定御朱印を楽しめるイベント。ゆっくり町歩きをしたい方にも人気です。
あじさいイベント|下田市



Best Season6月
下田公園では大規模なあじさいイベントが開催され、多くの花が園内を彩ります。
雨の季節ですが、しっとりした景色が魅力的で、写真好きにも人気です。
5月・6月は「連泊」で楽しむ伊豆旅がおすすめ
- 温泉街でのんびり過ごす
- カフェやローカルなお店巡り
- 昼は自然散策、夜はホタル観賞
- 混雑を避けてゆったり旅行
5月〜6月の伊豆半島は、「観光を詰め込む旅」よりも、
“滞在そのものを楽しむ旅”にぴったりの季節です。

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