Sento-Run : Jog and bath in Toshimaen (Tokyo)
A perfect sunday: Jogging, nature, and a soothing Japanese spa
There are moments in life that we wish could last forever—small, simple pleasures that bring us pure joy and deep relaxation. The experience I’m about to share with you is one of them.
A Sunday morning ritual
After a long and busy week navigating the endless energy of Tokyo’s metropolis, Sunday morning finally arrives—a time to slow down, reconnect with nature, and indulge in a routine that blends movement and tranquility.
At 9 AM, I lace up my running shoes, pack a small sports bag with a change of clothes, a swimsuit, and toiletries, and set out for an hour-and-a-half jog. My journey begins at Toshimaen Station, where I follow the Shakujii River, a serene escape from the city's rush. As I run, I pass by Tohoku Park, where I pause to stretch and do a few strength exercises, all while admiring the seasonal beauty of the trees surrounding the area. After this refreshing workout, I make my way to my ultimate destination—Niwanoyu, my favorite Japanese spa bathhouse.
Why this running route feels special
There are many reasons I love jogging in this area, but one of the most magical is the scenic beauty along the Shakujii River. Lining the path are various tree species, creating a lush and peaceful environment. Among them, the most breathtaking are the sakura (cherry blossom) trees—and if you’ve ever seen them in full bloom during spring, you can imagine just how stunning this route becomes. Running beneath a canopy of delicate pink petals, with soft petals drifting in the breeze, is a moment of pure enchantment.
But this Sunday ritual isn’t just about the run—it’s about the reward at the end. In the next section, I’ll introduce you to Niwanoyu, a Japanese spa that transforms this morning workout into a full wellness experience.
A morning symphony of nature
Beyond the beauty of the cherry blossoms and the tranquility of the river, another element makes this Sunday run truly special—the wildlife that thrives along the Shakujii River.
As I jog under the soft morning sunlight, I'm not the only one enjoying the fresh air. Ducks gracefully glide across the water, using the river as their personal runway for takeoff and landing. Along the banks, small birds fill the air with their morning songs, creating a soothing natural soundtrack that accompanies each step of my run.
Every now and then, I spot something truly mesmerizing—a whooping crane standing patiently at the river’s edge, its sharp gaze fixed on the water, waiting for the perfect moment to catch its breakfast. Seeing this elegant bird in the heart of Tokyo is a rare and peaceful sight, a reminder that nature and urban life can coexist in harmony.
This connection with nature, the gentle rhythm of the river, and the sounds of the birds make this jogging route more than just exercise—it’s a moment of escape, a breath of fresh air in the middle of the city’s energy.
And after soaking in this serene environment, the final reward awaits—a relaxing soak in the healing waters of Niwanoyu, the perfect way to complete this morning ritual.
A sunday morning scene: Baseball, autumn colors, and the final stretch
Beyond the beauty of the river and the melodies of nature, there’s another reason why I cherish this Sunday morning run—the energy and enthusiasm of young baseball players bringing the park to life.
As I pass by the baseball fields, I see Japanese kids dressed in their flamboyant uniforms, already on the field, warming up for their big game. Their parents and coaches stand on the sidelines, cameras in hand, ready to capture every moment of their children’s Sunday morning match. It’s a nostalgic and heartwarming scene—one that perfectly embodies the spirit of dedication and teamwork so deeply rooted in Japanese culture.
A pause for strength and reflection
After about 30 minutes of gentle jogging, I reach Tohoku Park, a welcoming green space with wide-open lawns, baseball fields, and a racetrack. It’s the perfect place to pause, stretch, and do some strength exercises, taking in the peaceful atmosphere.
The racetrack is particularly stunning in autumn, when the surrounding trees transform into a palette of deep reds, oranges, and golden yellows. The crisp morning air, the crunch of fallen leaves underfoot, and the golden sunlight filtering through the branches make this season an absolute delight for outdoor activities.
The final stretch
After soaking in this lively and colorful scene, it's time for the final stretch of my journey. Retracing my steps, I head back along the Shakujii River, following the familiar path toward my ultimate destination—Niwanoyu, my favorite Japanese spa.
A warm soak in the mineral-rich waters awaits, the perfect way to relax my muscles, rejuvenate my mind, and complete this Sunday ritual.
The ultimate reward: Relaxation and tranquility at Niwa no Yu
As I continue along the Shakujii River, I catch my first glimpse of the bathhouse, nestled in its serene setting. Just ten more minutes and I’ll step into Niwa no Yu, my haven of relaxation after a refreshing morning run.
The name "Niwa no Yu" (庭の湯) translates to “Hot Spring in the Garden”, and it truly lives up to its name. Beyond its indoor pools with soothing massage jets, outdoor sauna, and jacuzzi, the highlight of this onsen is its tranquil open-air bath, where you can soak while gazing out at a beautifully manicured Japanese garden. The experience is one of pure serenity, where nature and wellness come together in perfect harmony.
The hot spring water, rich in minerals, is drawn from 1,445 meters underground, offering not just warmth but deep therapeutic benefits. As the steam rises and the warm water envelops my body, I feel the fatigue from my run melt away, replaced by a profound sense of relaxation and renewal.
A moment of pure bliss
After the bath, the experience doesn’t end. The second floor of Niwa no Yu offers a space to rest, unwind, and indulge. Whether it’s enjoying a bowl of nourishing Japanese food, savoring a cool, creamy ice cream, or simply reclining in the peaceful lounge, this is the perfect place to extend the relaxation just a little longer.
As I sit back, feeling my body light and my mind at ease, I take a deep breath and let gratitude wash over me. The perfect balance of movement, nature, and deep relaxation—this is what Sundays are made for.
General information:
- Running course: From Toshimaen Station, run along the Shakuji River and cross the bridge at Hikawadai Station, continue along the Shakuji River, you will arrive at Johoku Central Park, you can walk around the park and return to Toshiamen Station.
- Distance : 6.2km.
- NIWA NO YU address : 3-25-1 Koyama, Nerima City, Tokyo 176-8531
- Website : https://www.seibu-leisure.co.jp/niwanoyu/index.html
- Access : 1 minute walk from Toshimaen station.
- Opening hours : from 10:00 to 23:00 (No holidays).
- Price : General 2310 yens - Night pass (after 18:00) 1295 yens - Rental swimming suits available for 440 yens.
If you are looking for more articles about bathing culture, Spa in Tokyo and natural thermal sources "Onsen", give a look at these following articles
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