Todoroki Gorge: A Hidden Power Spot in Isahaya With Famous Waters

[Important] Following the earthquake that struck on 28 July 2026, the facilities at Todoroki Gorge were closed, and they have been partially reopened since 4 August. The area that can be entered changes according to conditions, so before you visit please be sure to check the latest notices from Isahaya City.

In Takaki in Isahaya City in Nagasaki Prefecture, Todoroki Gorge rises from Mount Tara as a clear stream where thirty waterfalls large and small follow one after another. It has been chosen among the one hundred famous waters of Japan by the Ministry of the Environment, and the surrounding forest is also listed among the one hundred forests of headwaters. Wrapped in clear water and rich greenery, it is a healing nature spot full of fresh air.

The standout is Todoroki Falls, whose roar echoes in a wide basin with great force. The path is well kept, letting you come right up to the falls. Other falls of differing character are scattered along the stream, such as Senryu Falls, Futami Falls, and Yoryu Falls, and fireflies, sculpin, freshwater crabs, and yamame trout live here, as only a clear stream allows.

Highlights

• A clear stream of thirty waterfalls chosen among the famous waters of Japan
• Todoroki Falls, echoing with a thunderous roar in its wide basin
• A tour of falls of differing character, including Senryu, Futami, and Yoryu
• A rich forest of headwaters home to fireflies and yamame trout

Enjoying the Seasons

In early summer fireflies dance, and in summer you can enjoy the cool stream and flowing somen noodles. Autumn brings splendid colored leaves across the gorge, and the fresh green season soothes the heart with vivid greenery. The stream holds a nearly constant water temperature year round, staying cool even at the height of summer. It is a place to feel the blessings of water and greenery all year round.

Access and Basic Information

• Location: Zenjuji, Takaki, Isahaya City, Nagasaki Prefecture
• Access: About fifteen minutes by taxi from Yue Station on the JR Nagasaki Main Line, or about forty to forty five minutes by car from the Isahaya interchange on the Nagasaki Expressway
• Campgrounds and a flowing somen teahouse are nearby
• Free to view, no admission fee, though facilities such as the somen restaurant charge separately
• Trails and facilities may close during heavy rain or high water, so check the official Isahaya City website in advance

Practical Travel Notes

• Best season and time: The highlights are early summer nights when fireflies dance, summer when the flowing somen draws crowds, and autumn colors. The streamside stays cool even by day, so it also suits a midsummer escape from the heat.
• Avoiding crowds: The somen hours during summer holidays and Obon fill with families. For a quiet walk in the gorge, weekdays or early mornings are best.
• Time needed: About thirty minutes for a stroll around Todoroki Falls, or one to two hours to reach the upstream falls.
• Nearby real spots: Close to a trailhead for Mount Tara, it pairs well with a hike. Combining it with Isahaya Park and its spectacles bridge in the city, or a drive along the Ariake Sea, is also fine.
• Budget feel: Viewing is free. The somen restaurant and campground charge separately. Since most visitors come by car, allow for a rental car and fuel.

A Quick Tip

The streamside is wet and slippery, so wear non slip shoes. If you walk to the upstream falls, dress for easy walking. The waterside is chilly even in summer, so bring an extra layer. When the water is high, do not push on, and check trail conditions before you visit.

Visitor Checklist

• Estimated time: Allow about one to two hours to view the falls along the trail.
• What to prepare: You walk waterside paths, so non-slip shoes and something to drink are reassuring.
• Getting around: It sits in the hills, so go by car and walk the trail from the parking lot.
• Viewing tips: The falls run in a series, so following the marked trail route makes the highlights easy to track.

Practical Information for Your Visit

• Fee: Visiting is free of charge. There is no admission fee
• Opening status: The gorge is closed without notice depending on weather conditions. Particular care is needed after the declaration of the rainy season or after heavy rain. Before you set out, check the latest access restrictions on Isahaya City's "Todorokikyo Related Facilities" page
• Access: About 40 minutes by car from JR Isahaya Station
• Parking: There is a large car park near the entrance to the gorge
• Time needed: About 30 minutes if you stay around Todoroki Falls, or 1 to 2 hours if you follow the stream up to the waterfalls further upstream
• In rainy weather: There is no covered shelter, and access is restricted in rain or when the water level rises. After a spell of rain, the safest choice is to postpone your visit
• Footwear and clothing: The paths along the mountain stream get wet and slippery, and there are also stone steps. Wear non-slip shoes. Even in summer it can be chilly by the water, so something to layer over your clothes will make the visit more comfortable
• Strollers and wheelchairs: The streamside path heading upstream is uneven and is not suited to walking with a stroller or wheelchair. You can, however, drive as far as the area around the large car park near the natural pool
• Prohibited activities: Camping, open fires, barbecues and other uses of fire are prohibited
• Resident caretaker: There is none. You need to judge your own condition and the weather for yourself
• Somen nagashi (flowing noodles): You can try it at "Todoroki Ryoan" within the gorge. It is open from late April to late November, from 10:30 to 18:00 in summer (last orders 17:00), and outside summer from 11:00 to 14:00 on weekdays (last orders 13:00) and from 11:00 to 16:00 on Saturdays, Sundays and public holidays (last orders 15:00). The address is 1106-72 Zenjuji, Takaki-machi, Isahaya City, telephone 0957-42-3007. It may close or change its hours depending on the weather
• To avoid the crowds: The busiest times are the somen nagashi hours during the summer holidays and the Obon period. If you want a quiet walk, weekday mornings are recommended
• Budget guide: Visiting is free of charge. You only need to allow for the cost of the somen nagashi meal and the round trip by car
• Address: Oyama, Zenjuji, Takaki-machi, Isahaya City, Nagasaki Prefecture 859-0125
• Inquiries: Isahaya City Commerce and Tourism Division, 0957-22-1500

📚 Sources

The information about Todoroki Gorge and Todoroki Falls was compiled by our editorial team from Isahaya City tourism information, local guidance, and interpretive signs along the trail. The account of a clear stream rising from Mount Tara with as many as thirty falls, selected among the Ministry of the Environment 100 famous waters, follows these public references. Because trail conditions change with the season and weather, please confirm the latest information from Isahaya City or local sources before your visit.

The facts that the Todoroki stream has its source on Mount Tara, that it holds more than 30 waterfalls large and small, its selection among the 100 Famous Waters and the 100 Forests of Water Sources, the names of waterfalls such as Yoryu Falls, Todoroki Falls and Tairyu Falls, the status of the natural pool, the ban on camping and the use of fire, the absence of a resident caretaker, and the existence of the "Criteria for Prohibiting Entry to the Todorokikyo Area due to Weather Conditions" were confirmed on the "Todorokikyo Related Facilities" page of the Isahaya City official website. The closure following the earthquake of July 28, 2026 and the partial reopening from August 4 of the same year come from a notice updated by Isahaya City on August 3, 2026. The address, access from JR Isahaya Station and the contact details are based on the facility information on the official tourism website of the Nagasaki Prefecture Tourism Federation. The opening period, opening hours, address and telephone number of the somen nagashi restaurant "Todoroki Ryoan" were taken from the shop information published by the restaurant itself. Opening conditions can change significantly with the weather and with disasters, so please check the official information before you set out.