Ryujin no Izumi (Hadano City, Kanagawa Prefecture) Complete Guide | Access and Attractions to the Famous Water Spring
Ryujin no Izumi (龍神の泉), located upstream of the Mizunashi River in Hadano City, Kanagawa Prefecture, is a spring water spot that has long been cherished by ascetics and hunters. Known as one of the “Hadano Basin Spring Water Group” selected as one of Japan’s 100 Famous Waters in the Showa era, it continues to attract many people seeking crystal-clear water. This article comprehensively introduces information you should know before visiting, from the charm of Ryujin no Izumi to access methods, water quality information, and nearby tourist attractions.
Ryujin no Izumi | The Mystical Origin and History of Famous Water
The Sacred Spring Where Dragon Legend Lives
Ryujin no Izumi gets its name from a rock shaped like a dragon located about 50 meters upstream from the water drawing area, at an altitude of approximately 520 meters on a mountainside. Since ancient times, it has been revered as a place where the “Dragon God” who governs water dwells, serving as a precious source of drinking water for monks, hunters, charcoal makers, and other residents.
Due to its location in the upper reaches of the Mizunashi River, crystal-clear spring water nurtured by the abundant nature of the Tanzawa Mountains flows out continuously. This mystical atmosphere and pure water quality continue to fascinate visitors.
A Corner of the 100 Famous Waters: “Hadano Basin Spring Water Group”
Ryujin no Izumi is included in the “Hadano Basin Spring Water Group,” one of the 100 Famous Waters selected by Japan’s Ministry of the Environment in 1985. Hadano City is located at the foot of the Tanzawa Mountains, where rain that falls on the mountains infiltrates underground, forming abundant groundwater.
The Hadano Basin Spring Water Group includes, in addition to Ryujin no Izumi, multiple spring sites such as Kobo no Shimizu, Imaizumi Spring Water Pond, and Gomaya’s Water. Hadano City is known as the “Land of Water,” and these springs are utilized as municipal water for residents’ daily use, serving as precious water resources for the region.
Water Quality and Characteristics of Ryujin no Izumi | The Appeal of Drinkable Famous Water
Clear Soft Water That Is Easy to Drink
According to water quality tests conducted by Hadano City, Ryujin no Izumi has the following characteristics:
- Hardness: Approximately 44 mg/L soft water
- Water Temperature: 10–16°C (varies by season)
- Taste: Mellow and easy to drink
A hardness reading of around 44 is standard soft water for Japan’s spring waters and is considered delicious water suitable for drinking. The water temperature of around 14°C is neither too cold, making it ideal for drinking directly. Visitors who come to draw water often comment, “It’s mellow and delicious” and “It’s exceptional for coffee or tea.”
Abundant Water Volume and Drawing Environment
A tap is installed at Ryujin no Izumi’s water drawing area, supplying a moderate amount of water. Furthermore, large quantities of water flow from the nearby rock face, and the abundance of water is surprising. Despite being named a spring, it actually presents the appearance of a splendid waterfall, making it visually enjoyable.
Visitors to draw water are constant, and multiple groups can be seen drawing water on weekends. Many local residents bring plastic bottles and plastic containers to use the water for daily household use, showing that it is a spring deeply rooted in the community.
Access Methods | How to Get to Ryujin no Izumi and Precautions
Access by Public Transportation
When using trains and buses:
- Get off at “Shibusawa Station” on the Odakyu Line
- Board the Kanagawa Chuo Bus heading to “Oikura”
- Get off at the “Oikura” bus stop
- Walk approximately 40–50 minutes from the bus stop
While access by public transportation is possible, there is considerable distance from the bus stop to Ryujin no Izumi, and you will be walking on mountain trails. This route is suitable for those confident in their fitness levels or those who wish to enjoy hiking.
Access by Car (Recommended)
Car access to Ryujin no Izumi is the most convenient:
- Head toward Hadano Togawa Prefectural Park
- From the park, proceed on Municipal Road 52 toward Tozawa
- The road becomes unpaved partway, so exercise caution
- Proceed toward Ryujin no Izumi using signage as a guide
Parking Information:
- Small parking space available near Ryujin no Izumi
- Mutual courtesy is necessary during busy times
Road Conditions and Driving Precautions
The road leading to Ryujin no Izumi becomes unpaved partway and requires attention to the following points:
- Road Surface: Bumpy stone roads with many cracks and indentations
- Road Width: Many narrow sections where passing oncoming vehicles is difficult
- Falling Rocks: Multiple “Caution: Falling Rocks” signs are posted
- Weather: Road conditions particularly worsen during rain or after rainfall, so exercise caution
It is best to avoid visiting in vehicles with low ground clearance or large vehicles. We recommend visiting in vehicles with adequate ground clearance, such as light vehicles or SUVs.
How to Enjoy Ryujin no Izumi | From Water Drawing to Nature Observation
Famous Water Drawing Experience
The primary purpose of visiting Ryujin no Izumi is drawing famous water. Enjoy the experience while paying attention to the following points:
Etiquette When Drawing Water:
- Respect turns and share courteously with other water drawers
- Avoid monopolizing the area for extended periods
- Always take trash with you
- Do not pollute the surrounding natural environment
Useful Items to Bring:
- Plastic bottles or plastic containers (clean ones)
- Towel (for use if water spills)
- Cooler box (for transport during summer)
- Work gloves (for safety on rocky areas)
Nature Observation and Forest Bathing
The area surrounding Ryujin no Izumi is surrounded by the abundant nature of the Tanzawa Mountains. In addition to drawing water, we recommend the following ways to enjoy the area:
- Bird Watching: The area around Hadano City is a haven for birds, where various bird species can be observed
- Forest Bathing: Experience healing through clear air and the sound of flowing water
- Photography: The waterfall-like flow of water and lush scenery are popular photography spots
- Meditation and Refreshment: Find peace and calm your mind in a quiet environment
Motorcycle Touring Rest Stop
Ryujin no Izumi is also popular as a rest spot for motorcycle touring. Motorcyclists can be seen making coffee with the drawn water and enjoying it. Incorporating it into touring routes in the Tanzawa area will provide a more fulfilling experience.
Nearby Tourist Attractions | Places to Visit Along with Ryujin no Izumi
Hadano Togawa Prefectural Park
Hadano Togawa Prefectural Park, located on the way to Ryujin no Izumi, is a comprehensive park popular with families:
- Wind Suspension Bridge: A 267-meter pedestrian-only suspension bridge
- Barbecue Area: BBQ facilities along the Mizunashi River
- Park Center: Exhibition facility where you can learn about Tanzawa’s nature and history
- Lawn Plaza: Ideal for picnics and leisure activities
A plan to visit Ryujin no Izumi and then spend time relaxing at the park is also recommended.
Mount Oyama
Mount Oyama, located near Hadano City, is a sacred mountain with an elevation of 1,252 meters, long revered as an object of faith:
- Oyama Afuri Shrine: Ancient shrine with structures at the summit and midway point
- Oyama Cable Car: Reduces the burden of climbing
- Hiking and Nature Walks: Courses enjoyable by beginners to advanced hikers
- Fall Foliage Spot: Beautiful autumn colors can be enjoyed
Hadano City Center Tourism
The Hadano City center has the following tourist attractions and experience facilities:
- Kobo no Shimizu: One of the Hadano Basin Spring Water Group
- Imaizumi Spring Water Pond: A waterfront park utilizing spring water
- Hadano City Sakurado Kofun Exhibition Hall: Displays artifacts from the Kofun period
- Hadano Tobacco Festival: A traditional festival held every September
Precautions and Etiquette When Visiting
Safety Considerations
When visiting Ryujin no Izumi, please be aware of the following safety matters:
- Watch Your Step: Rocky and wet areas are slippery
- Wear Appropriate Clothing: Wear suitable shoes and clothing for mountain trails
- Check Weather: Avoid visiting during rain or after typhoons due to danger
- Avoid Traveling Alone: Visit with others if possible
- Mobile Phone Signal: Signal may be weak in mountainous areas
Environmental Conservation Support
To preserve the beautiful natural environment of Ryujin no Izumi, please follow these etiquette guidelines:
- Take Trash With You: Always take all trash with you
- Water Quality Conservation: Do not pour detergents or pollutants into the water
- No Plant Collection: Do not collect plants in the surrounding area
- Be Considerate of Noise: Do not disturb the tranquility with loud voices or music
- Parking Etiquette: Park in designated areas and be mindful not to obstruct traffic
Precautions When Drawing Water
Please be aware of the following points when drawing spring water:
- Drinking is at Your Own Risk: While regular water quality tests are conducted, drinking is done at your own risk
- Boiling Recommended: If concerned about raw water, boil before use
- Storage Method: Keep in a clean container and store in a cool, dark place
- Use Promptly: Use drawn water as soon as possible (within 2–3 days is a guideline)
Ryujin no Izumi Through the Seasons | Seasonal Attractions
Spring (March to May)
The area around Ryujin no Izumi in spring is beautiful with fresh greenery and bird songs. Increased water volume from melting snow provides a more impressive landscape. Bird watching events are held, making this an ideal season for nature observation.
Summer (June to August)
Summer is when the water temperature feels coldest, and visitors seeking coolness increase. Forest greenery deepens, making this an ideal season for forest bathing. However, crowding may occur during summer vacation, so early morning visits are recommended.
Autumn (September to November)
Autumn brings beautiful fall foliage, with surrounding mountains displaying vibrant colors. Water temperature is pleasantly cold, making it an ideal time for water drawing. Clear air also makes this favorable for photography.
Winter (December to February)
Ryujin no Izumi in winter has few visitors and offers a mystical atmosphere enveloped in silence. Water temperature drops to around 10°C, feeling even colder. Road freezing is possible, so exercise sufficient caution when visiting.
Event Information Around Ryujin no Izumi
Various events are held throughout the year in Hadano City:
Regular Events
- Hadano City Commerce Festival: A regional festival held in late May
- Hadano Tobacco Festival: A traditional festival held in September
- Magohotoke Festival: A historical festival held in May
- Forest Road Walking: A hiking event hosted by the Hadano City Mountaineering Association
Visiting Ryujin no Izumi in conjunction with these events allows for a more fulfilling Hadano tourism experience.
Ways to Use Water from Ryujin no Izumi
As Drinking Water
Water from Ryujin no Izumi can be used directly as drinking water (at your own risk). Being soft water, it is mellow and easy to drink, making it ideal for daily drinking water.
For Cooking
- Rice Cooking: Rice becomes fluffy when cooked
- Tea and Coffee: Enhances flavor
- Broth Making: Using the water for Japanese broth increases umami
- Soup and Miso Soup: Brings out the natural flavor of ingredients
Other Uses
- Aquarium Water: No dechlorination needed; gentle on fish
- Plant Watering: Plants grow vigorously
- Face Washing: Soft water is gentle on the skin
Planning Your Visit to Ryujin no Izumi
Recommended Visiting Hours
- Weekday Mornings: Less crowded, allowing for leisurely time
- Weekend Early Mornings: Fewer people
- Times to Avoid: Mid-morning on weekends may be crowded
Estimated Time Required
- Water Drawing Only: 30 minutes to 1 hour
- Including Surrounding Exploration: 1.5 to 2 hours
- Combined with Hadano Togawa Prefectural Park: Half day to full day
Packing Checklist
- Containers for water (plastic bottles, plastic containers, etc.)
- Comfortable clothing and shoes
- Towel
- Work gloves
- Camera (for photos)
- Drinks and light snacks
- Garbage bag
- Map or smartphone (for navigation)
Conclusion | Experience the Blessings of Nature at Ryujin no Izumi
Ryujin no Izumi in Hadano City, Kanagawa Prefecture, is one of the Hadano Basin Spring Water Group selected as one of Japan’s 100 Famous Waters and has long been cherished by many people. This spot is appealing for its mystical atmosphere where the dragon legend lives, crystal-clear and delicious spring water, and abundant natural environment.
Access requires traveling on unpaved mountain roads, and there are some difficulties, but the value far outweighs the challenges. You can enjoy not only water drawing but also nature observation, forest bathing, and photography in various ways.
When visiting, exercise sufficient care regarding safety, and respect environmental conservation etiquette to appreciate this precious natural blessing. Combined with nearby tourist attractions such as Hadano Togawa Prefectural Park and Mount Oyama, you can experience a more enriching Hadano tourism experience.
Crystal-clear water welling up at the foot of Tanzawa, Ryujin no Izumi. Escape the hustle and bustle of the city and experience the blessings of nature with all your senses at this special place. Please visit today.
