Shima Onsen 2-Day Itinerary: Hot Spring Town and Shima Blue
A 2-day, 1-night Shima Onsen itinerary is ideal for slowly savoring the quiet of the hot spring town in Nakanojō, Gunma Prefecture, and the "Shima Blue" of the Shima River.
On the first day, get used to the atmosphere of the hot spring town on the way to your inn, and on the next day, see the natural scenery of Lake Oku-Shima and the Shima River—this makes it easier to balance travel and rest.
First Day: Stroll the Hot Spring Town; Next Day: Head for Shima Blue
On your arrival day, we recommend gently spending the time before and after checking in at your inn while walking the riverside paths, the shopping street, and the scenery with its bridges.
The next day, after seeing the surface of Lake Oku-Shima and the color of the Shima River's water, stopping at the Shima Potholes and Lake Shima along your return route lets you compare the different expressions of Shima Blue from place to place.
Changing How You Plan the Itinerary by Public Transport or Car
If visiting by public transport, you can use the Kan-etsu Kotsu route bus heading toward Shima Onsen from Nakanojō Station on the JR Agatsuma Line (Agatsuma-sen).
Kan-etsu Kotsu's Shima Onsen Line connects Nakanojō Station and Shima Onsen, taking about 40 minutes, and cash and transportation IC cards are listed as payment methods.
If visiting by car, confirm the one-way traffic around Lake Oku-Shima and the seasonal road conditions on the on-site signs, and near the lake and river, travel with consideration for pedestrians.
Decide the Flow of Your Shima Onsen Trip in Advance
At Shima Onsen, the highlights—the hot spring town, the lakes, the river, and the exteriors of historic inns—are scattered through the valley.
Rather than packing in precise times, leaving room to rearrange the order to match the weather and your inn's schedule gives peace of mind.
The following table organizes a 2-day, 1-night itinerary that is easy to use when overseas visitors visit Shima Onsen for the first time.
| Order | Focus of the Trip | How to Spend It |
|---|---|---|
| Day 1 after arrival | Hot spring town | Riverside stroll |
| Day 1 evening | Inn's bath | Bathing and dinner |
| Day 2 morning | Lake Oku-Shima | Gazing at the lake |
| Day 2 return | River nature | Potholes and lake |
Day 1 | Walking the Shima Onsen Town to Set the Mood for Your Trip
The star of the first day is a stroll through the hot spring town that stretches along the Shima River.
Walking a little before soaking in your inn's bath lets the mountain air, the sound of the river, and the appearance of the old inns naturally come to you.
After Arriving, Sort Out Your Luggage and Transport
Whether you can leave your luggage at the inn, whether there is a shuttle, and how to spend the time before check-in differ from inn to inn.
Confirming this with the information from your reserved facility before moving means you won't have to carry large bags around during your stroll.
If using public transport, checking the return bus and your next means of travel early also creates room in your plans for the next day.
Savoring the Hot Spring Town Feel Along the Shopping Street and Riverside
In the Shima Onsen town, there is much scenery you notice only by walking—shop signs on the shopping street, the bridges spanning the river, and the entrances of the inns.
Since shops and eateries may change their business days and hours, if you have a particular shop in mind, head there after confirming its business information.
Even when eating as you walk, it is important not to stop too long on the narrow roads or on the bridges, and to be considerate not to obstruct the flow of foot traffic.
Quietly Enjoy the Exterior Around Sekizenkan
Sekizenkan, seen across the red bridge (Keiun Bridge), is known as one of the scenes that symbolize Shima Onsen.
The main building of Sekizenkan, built in 1691 (Genroku 4), is a Gunma Prefecture designated Important Cultural Property and a historic building said to be Japan's oldest wooden hot spring inn structure.
The basic rule is to gaze at the exterior within a range that does not obstruct the movement of guests and users.
Since whether interior tours, bathing, and photography are allowed may change with the season and the facility's operations, please confirm the facility's guidance before use.
Walk While Changing How You View the Hot Spring Town
Even on the same street, changing your viewpoint—looking at the color of the river, viewing the buildings from a bridge, looking at the signs and alleys—changes the impression.
When taking photos, choosing a spot that does not spill into the road and does not block the entrances of inns or shops gives peace of mind.
Here is a brief summary of viewpoints to keep in mind while strolling the hot spring town.
| Viewpoint | Point of Focus | Consideration |
|---|---|---|
| Riverside | Color of the water | Check your footing |
| Around bridges | Depth of the view | Give way to foot traffic |
| Shopping street | Signs | Confirm business hours |
| In front of inns | Exterior | Keep the entrance clear |
Day 1 Evening | Slowly Savoring Shima's Waters in Your Inn's Hot Spring
On an overnight trip to Shima Onsen, satisfaction rises when you avoid packing in too much sightseeing and place the inn's hot spring and dinner at the center of your trip.
At a hot spring resort, the flow of your trip is shaped by each inn's bathing hours, bath rotation, and meal information.
Confirm the Inn's Guidance First
At check-in, confirm the location of the baths, the hours you can bathe, how private baths and day-use bathing are handled, and the rules for photography inside the inn.
For overseas visitors, since matters such as where to remove your shoes, how to wear a yukata (casual cotton kimono), and how to get to the dining venue also differ by inn, asking at the start is reassuring.
Experiencing Shima's Drinking-Water Culture at the Shio-no-Yu Drinking Spring
Shima Onsen has a drinking spring (insenjo) where you can experience the culture of drinking hot spring water.
The Shio-no-Yu Drinking Spring (Shio-no-yu Insenjo) is introduced as a spot for drinking the spring water; use is free, and the hours are 8:00 to 18:00.
The water at the Shio-no-Yu Drinking Spring has a faint salty taste, and while it is described as being drinkable for the stomach, intestines, and constipation, drinking spring water requires caution regarding your condition and the amount, so reading the on-site postings and knowing not to force yourself to try it is also important.
The Quiet of the Hot Spring Town at Night Is Also a Charm
The hot spring town after dinner takes on a calm atmosphere different from daytime.
Even just walking a little near your inn, the sound of the river and the lights deepen the afterglow of your trip.
However, at night footing is hard to see, and in the valley you may feel temperature differences, so preparing comfortable walking shoes and something to throw on gives peace of mind.
Day 2 Morning | Gazing at Shima Blue at Lake Oku-Shima
The next morning, head for Lake Oku-Shima (Oku-Shima-ko), known as the scenery that represents Shima Blue.
Lake Oku-Shima sits at the very back of Shima Onsen and is a dam lake, about 4 km around, created by the Shima River Dam.
Shima Blue's Color Changes with Place, Season, and Weather
Shima Blue does not always appear the same color.
It shows various expressions depending on the place, season, weather, and time of day.
From April to May, when snowmelt water flows in, the blue tends to look especially beautiful, and the morning, when it is sunny and the sun shines on the lake surface, is also an easy time to see it.
At the Lakeside, Mind Where You Walk and the Flow of Cars
Around Lake Oku-Shima, spots that make it easy to gaze at the lake, such as Seseragi Park and observation decks, are maintained.
If going around by car, follow the one-way traffic around the lake and confirm where you can stop and the pedestrian routes.
Even when combining public transport or rental bicycles, confirming the return location and the time of the last service in advance makes the trip smoother.
Confirm Waterside Activities Like Canoeing in Advance
At Lake Oku-Shima, ways to enjoy the water such as canoeing are also introduced.
However, the days offered, reservations, clothing, and cancellation conditions due to weather differ by operator.
If including an experience in your itinerary, apply after confirming the organizer's guidance rather than deciding on the spur of the moment that day.
Know How Shima Blue Looks by Season
Shima Blue changes in impression not only with the depth of the blue but also in combination with the green of the mountains, the autumn leaves, and the snowy scenery.
Even on a day when the color of the lake surface is your goal, if the weather doesn't cooperate, switching to a riverside stroll or photos of the hot spring town makes it easier to enjoy your trip.
Here is a summary of how to view each season in words that are easy for travelers to judge by.
| Season | How It Looks | Preparation |
|---|---|---|
| Spring | Snowmelt blue | Check the weather |
| Early summer | Fresh greenery and lake surface | Bring rain gear |
| Autumn | Changing mountain colors | A little cold protection |
| Winter | Quiet lake | Mind your footing |
Day 2 Midday | Comparing Water Scenery at the Shima Potholes and Lake Shima
After seeing Lake Oku-Shima, stopping at the natural spots along the Shima River on your way back lets you enjoy Shima Blue from a different angle.
Seeing the Forms the River Creates at the Shima Potholes
The Shima Potholes (Shima Ōketsu) are natural formations where the flow of the Shima River carved into the bedrock over a long time, creating round holes.
The Shima Potholes are introduced as eight holes of various sizes opened in the riverbed of the Shima River, and were designated a Gunma Prefecture Natural Monument in 1971 (Shōwa 46).
The Shima Potholes are on the entrance side of Shima Onsen, and since areas close to the water can be slippery with wet rocks and steps, confirm your footing rather than focusing too much on photos.
Gazing at the Gentle Shima Blue at Lake Shima
Lake Shima (Shima-ko) is a man-made lake about 5 km in circumference located on the gateway side of Shima Onsen, introduced as the reservoir of the Nakanojō Dam.
It is easier to fit into your travel route than Lake Oku-Shima, and if the weather cooperates, you can calmly gaze at the color of the water and the surrounding greenery.
If using activities, confirm reservations and clothing with the organizer's guidance, and even when just walking the lakeside, choose places where entry is permitted.
Don't Add Too Many Detours Before Heading Back
The area around Shima Onsen is one where mountain roads and the narrow roads of the hot spring town combine.
If your return train or bus is set, don't add too many final stops, and leave yourself room to return to your inn or bus stop.
Looking for souvenirs and light meals in the hot spring town while confirming business status makes it easier to use the time before you leave.
Preparation and Onsen Etiquette Overseas Visitors Should Know
Because Shima Onsen is a quiet hot spring resort, advance confirmation and small considerations lead to a comfortable trip.
In particular, public transport, inn rules, and waterside safety are items you'll want to confirm before departure.
Base Your Transport to Shima Onsen on the Operator's Timetable
For the Kan-etsu Kotsu route bus heading from Nakanojō Station to Shima Onsen, confirm details based on the transport operator's timetable.
Since times may change with the season or with revisions, rather than judging by search sites alone, checking the transport operator's guidance gives peace of mind.
Before boarding the bus, confirming whether to pay by cash or transportation IC card, the boarding point, and the stop where you get off makes it easier for travelers uneasy about language to get around.
Follow Each Facility's Bathing Etiquette at the Hot Springs
At Japanese hot springs, there is basic bathing etiquette, such as washing your body before entering the bath and not putting your towel in the tub.
Since the handling of photography, tattoos, private baths, and day-use bathing differs by facility, please confirm with the facility's guidance or front desk.
When you're unsure of the rules, asking before entering the bath is more reassuring for both those around you and yourself.
At Nature Spots, Prioritize the Weather and Your Footing
At waterside spots such as Lake Oku-Shima, Lake Shima, and the Shima Potholes, the atmosphere changes with the weather and water volume.
After rain and in winter, be careful of your footing and road conditions, and avoid entering places with off-limits signs.
At the Shima Potholes, part of the stairs down to the riverbed may be off-limits, and not crossing fences or getting too close to the river for the sake of a photo is a basic way to finish your trip safely.
Here is a summary of actions to keep in mind at hot spring resorts and nature spots, divided into what is OK and what to avoid.
| Situation | OK | Avoid |
|---|---|---|
| Bath | Wash first | Take photos |
| Inn | Confirm guidance | Block the entrance |
| Bridge | Photograph briefly | Step into the road |
| Lakeside | Check the signs | Cross the fence |
| Drinking spring | Read the postings | Drink too much |
Summary | Enjoying the Hot Spring Town and Shima Blue at a Relaxed Pace on a Shima Onsen 2-Day Itinerary
The Shima Onsen 2-day, 1-night itinerary is easy to plan around a flow of walking the hot spring town on the first day, resting in the inn's bath, and seeing the natural scenery of Lake Oku-Shima and the Shima River the next day.
Because Shima Blue changes color depending on the place, season, weather, and time of day, the trip works best when you stay flexible and enjoy the scenery as it looks in that day's weather and light.
Confirm the Kan-etsu Kotsu bus times, the inn's bathing rules, and the accessible areas of the nature spots in advance, and walk while cherishing the atmosphere of this quiet hot spring resort.
By gently connecting the bridges of the hot spring town, the sound of the river, the blue of Lake Oku-Shima, and the time spent at your inn, it becomes a Gunma hot spring trip that is easy to understand even for first-time overseas visitors.
Reviews (0)