When is the hydrangea festival held?

It will be held from June 6, 2026 (Saturday) to June 21, 2026 (Sunday).

Is there access to the venue and parking?

The venue is in the vicinity of Mise Waterfall in Kanzaki, Karatsu City. During the event, a temporary parking lot (500 yen for regular cars, etc.) is available, and a free shuttle bus runs between Hotaru Bridge and the base of Mise Waterfall on weekends.

What are the lighting hours?

Lighting is held daily from 7:20 PM to 10:00 PM during the hydrangea festival period.

When and where can I enjoy firefly viewing?

Firefly viewing can be enjoyed from late May to mid-June along the area from Hotaru Bridge to the downstream of Mise Waterfall.

Can you tell me the contact information?

Please contact Karatsu Tourism Association (Phone: 0955-74-3355).

Hydrangea Festival to be held at Mikairi Waterfall, one of Japan's 100 Best Waterfalls

Published May 21, 2026 10:38 PM ・ Updated Jun 13, 2026 11:57 PM ・ 3 min read ・ Source: PR TIMES

The Hydrangea Festival will be held at Mikairi Waterfall in Karatsu City, Saga Prefecture, from June 6 to June 21, 2026. Visitors can enjoy 40,000 hydrangeas, night illuminations, and firefly watching.

The Hydrangea Festival will be held at Mikairi Waterfall in Ouchi-cho, Karatsu City, Saga Prefecture.

Around the waterfall, which is selected as one of Japan's 100 Best Waterfalls and boasts one of the largest drops in Kyushu, 40,000 hydrangeas of 50 varieties will be in full bloom along the path.

Event Period June 6 (Sat) – June 21 (Sun), 2026

Venue Around Mikairi Waterfall, Ikisa, Ouchi-cho, Karatsu City

Temporary Parking - Passenger cars: 500 yen - Motorcycles: 300 yen - Large vehicles (microbus and larger): 3,000 yen *Large vehicles are free on weekdays.

Free Shuttle Bus within the Venue - Operating days: Saturdays and Sundays during the event - Route: Between Hotaru Bridge and the foot of Mikairi Waterfall *Waiting times may occur during congestion. - Operated by: Karatsu City

Permanent Free Parking (Available on weekdays only during the event) - Mikairi Waterfall Parking (Downstream): 20 passenger cars - Mikairi Waterfall Parking (Upstream): 9 passenger cars *Hotaru Bridge Parking is unavailable during the event.

Mikairi Waterfall Illumination - Time: 19:20 – 22:00 (Every day during the event)

Firefly Watching - Location: Near Hotaru Bridge to the downstream of Mikairi Waterfall - Period: Late May – mid-June

Inquiries Karatsu Tourism Association Phone: 0955-74-3355

FACT BOX

Source: PR TIMES
Category: Event