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Aichi Prefecture · Chubu

Michi-no-Eki Nishio Okanoyama

道の駅にしお岡ノ山

A morning stop on Route 23 that lets you take home Nishio matcha sweets and Mikawa specialties from the gateway to a small castle town.

Updated 2026-09-30Michi-no-Eki Journal Read in Japanese

Illustrative image — not an on-site photograph

Location

Nishio City

Road

National Route 23 / Okazaki Bypass

Hours

06:00–18:00

Hours shown are for the roadside station, local products, and produce area. The restaurant, teahouse, and road information facility have different hours.

Parking

Cars: 66 / Large vehicles: 34

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How to enjoy

Choose how to enjoy your visit

Eat, shop, play, take in the view or rest. Choose from the station’s strengths to suit your day.

For an early stop

Shop and produce area from 6:00 a.m.

On an early Route 23 drive, browse bread, boxed meals, vegetables, and souvenirs before setting off.

For a meal

Choose Ippuku by time of day

Breakfast is available from 7:00, and lunch from 11:00. Look for lemon-simmered fried squid and Mikawa ingredients.

For a taste of Nishio

Matcha sweets at Okanoyama Chaya

Inariyama Mont Blanc, matcha toast, and soft serve introduce this tea-growing town.

With children

Add a short stop at Asoboccha Plaza

The lawn and play equipment offer a chance to move after time in the car.

To take something home

Matcha, shrimp crackers, and eel products

Browse Nishio matcha, Isshiki shrimp crackers, Mikawa-Isshiki eel, and local sweets in one stop.

Check your direction of travel

Easy access toward Toyohashi; use prefectural roads toward Nagoya

There is no direct entrance from the Route 23 Toyohashi-to-Nagoya carriageway; plan a route via Nishio-Higashi Interchange.

Highlights

Nishio Okanoyama is worth more than a quick rest on the Route 23 Okazaki Bypass. The farm produce area and shop open at 6:00 a.m.; Restaurant Ippuku serves breakfast and later meals; and Okanoyama Chaya offers Inariyama Mont Blanc made with Nishio matcha and matcha toast. Children and dogs can get some fresh air at the neighboring Asoboccha Plaza. With more time, continue to the tea fields, historical park, or tourist information center. Plan around the parking, toilets, and different opening hours to fit a taste of Nishio's food, shopping, and rest into even a short stop. Michi-no-Eki is a roadside rest stop with local shops and visitor information.

#Aichi Prefecture
#Nishio City
#National Route 23
#Okazaki Bypass
#Opening hours
#Inariyama Mont Blanc
#Matcha toast
#Lemon-simmered fried squid
#Direct farm sales
#Asoboccha Plaza
#24-hour toilets

Practical information

Registration number: 愛知-13
Prefecture: Aichi Prefecture
Municipality: Nishio City
Road: National Route 23 / Okazaki Bypass
Telephone: 0563-55-5821
Closed days: Generally open year-round, with possible temporary closures. The light-meal restaurant may announce New Year holiday closures.

Address

105-57 Okanoyama, Kojima-cho, Nishio City, Aichi Prefecture (愛知県西尾市小島町岡ノ山105番地57)

Facilities

24-hour toilets
Multipurpose toilet
Diaper-changing area
Road information facility
Tourist brochures
Direct farm sales
Shop
Restaurant
Teahouse
Adjacent plaza
Rapid EV charging equipment

External links

Visit the official website (Japanese)Background information (Japanese)www.city.nishio.aichi.jp (Japanese guide)nishiokanko.com (Japanese guide)aichinow.pref.aichi.jp (Japanese guide)nishimikawanavi.jp (Japanese guide)www.instagram.com (Japanese guide)

Why I like it

Reasons to stop here

A useful Route 23 rest stop open from 6:00 a.m.

The local products and produce area and shop open from 6:00 a.m. to 6:00 p.m. Even on an early drive, you can browse vegetables, bread, boxed meals, and souvenirs before setting off. From the Nagoya-to-Toyohashi carriageway of Route 23, access is easy via the Kojima-Ebara Interchange exit; from the opposite direction, use prefectural roads from the Nishio-Higashi Interchange. Check your direction of travel before you stop.

Enjoy Nishio matcha in sweets and souvenirs

Inariyama Mont Blanc, matcha toast, and dairy-farm soft serve at Okanoyama Chaya are signature choices. Browse the teahouse, shop, and produce area as well as the restaurant for Nishio matcha, Isshiki shrimp crackers, eel from Mikawa-Isshiki, and local sweets. Mont Blanc here is a chestnut-style dessert topped with piped matcha paste.

Asoboccha Plaza makes breaks easier for children and dogs

The neighboring Okanoyama Asoboccha Plaza has a lawn, play equipment, a barbecue area, and a cooking area, giving you time outdoors beyond the station. Toilets are available 24 hours, with a multipurpose toilet and diaper-changing facilities listed, making a short stop easier to plan.

Route idea

Ways to plan your stop

Spend your time at the station or add somewhere nearby. These ideas help you plan around your companions and the weather.

An early drive from the Nagoya area toward Toyohashi or Kota

Stock up on food and use the toilets on an early Route 23 drive

The shop and local products and produce area open at 6:00, adding a local touch to a convenience-store-style break. Browse bread, rice balls, prepared dishes, vegetables, and souvenirs; toilets are open 24 hours. You can get what you need without making the morning stop too long.

Enter directly from the Kojima-Ebara Interchange exit on the Nagoya-to-Toyohashi carriageway of the Route 23 Okazaki Bypass.

There is no direct entrance from the opposite carriageway; follow the prefectural-road route from Nishio-Higashi Interchange.

A day when family members or companions want different amounts to eat

Choose a full meal or something light around midday

For a full meal, try Restaurant Ippuku; for a lighter taste of Nishio, try Okanoyama Chaya. Choose between a set meal of lemon-simmered fried squid or Isshiki eel, and Inariyama Mont Blanc or matcha toast, according to your appetite.

Ippuku is open 7:00–15:00; from 10:00, the teahouse is another option.

The teahouse generally closes at 16:00 on weekdays and 17:00 on weekends and public holidays, so do not rely on sweets late in the afternoon.

A short break for preschoolers tired of the car or visitors with dogs

Make Asoboccha Plaza the focus of a break with children or a dog

The adjacent Asoboccha Plaza has a lawn, play equipment, a barbecue area, and a cooking area. Even a short walk before or after shopping can refresh drivers and passengers. The plaza is described as having good sight lines, which can help when watching children.

Use the station toilets → spend a short time outside at the plaza → return to the shop or teahouse.

In midsummer or severe weather, keep the outdoor stop short and use the indoor rest area and toilets first.

A short photo stop on a fine day, or a chance to see tea-growing scenery

For more of the matcha town, head to Inariyama Tea Garden Park

After matcha sweets or souvenirs at the station, drive about 10 minutes to Inariyama Tea Garden Park to see Nishio's tea fields as well as its products. The May tea-picking season is particularly evocative, but parking is limited, so plan a short visit.

Nishio Okanoyama → Inariyama Tea Garden Park. In good weather you can see the scenery first instead.

This is a small park, better suited to a brief tea-field view than a long stay.

Castle-town atmosphere, tea service at the Former Konoe Residence, and unhurried sightseeing

For a rainy-day or quieter adult outing, visit Nishio City Historical Park

At Nishio City Historical Park, you can combine reconstructed Nishio Castle features, the Former Konoe Residence, Shokoso Garden, and Matcha Lab. After eating and shopping at the station, the castle-town setting gives more context to Nishio. It also suits a quiet stop after a meal, with relatively little outdoor walking even on a rainy day.

Nishio Okanoyama → Nishio City Historical Park. It can also be combined with the information center near Nishio Station.

Monday closures, year-end and New Year holidays, and construction-related traffic restrictions may apply; check opening information for the day you go.

Hours

Opening hours

Roadside station, shop, local products and produce

6:00-18:00

Generally open year-round, subject to severe weather or temporary closures.

Restaurant Ippuku

7:00-15:00

An operator notice lists breakfast 7:00–9:00, brunch 9:00–11:00, and lunch 11:00–15:00. The city facility page lists breakfast through 10:00; check with the restaurant if arriving after 9:00.

Okanoyama Chaya

Weekdays 10:00–16:00 / weekends and public holidays 10:00–17:00

Plan within these hours if you are coming for Nishio matcha sweets.

Toilets and parking

24 hours

The road information facility is open 6:00–18:00; the outdoor monitor operates 24 hours.

Family

Visiting with children

Stars show the editorial recommendation for each age group on a five-point scale. Read the reasons alongside each rating.

Age 1 or under

★★★☆☆

Use the toilet and diaper-changing area first, and keep the teahouse or shop visit short.

Asoboccha Plaza offers outdoor time, but avoid a long stay in heat or strong wind.

Ages 2–3

★★★★☆

The play equipment and lawn offer a short chance to move and reset after time in the car.

Locate the toilets before heading to the plaza to make the return to shopping easier.

Ages 4–6

★★★★☆

Play equipment, soft serve, and matcha toast can make even a short stop enjoyable.

At busy mealtimes there may be a wait; combining the plaza and teahouse may make the stop easier.

Primary school age

★★★☆☆

The station alone suits a short stop. Add tea fields or the historical park for a Nishio-style half day.

Tea-picking season or a castle-town walk adds more than shopping alone.

Rest

Ideas for a restful stop

1
Make a brief circuit from parking to the toilets, shop, and teahouse; at busy times, you need not wait for a restaurant meal.
2
Shop and enjoy matcha sweets at the station in the morning, then visit the Former Konoe Residence and garden at Nishio City Historical Park around midday. This combination lets you adjust how far you walk.

Event

Make an event part of your visit

Permanent spaces and dated events are listed separately. Events can change both the atmosphere and crowds; use the official links for details.

Checking event dates.

Spaces used for events

Okanoyama Asoboccha Plaza

With a lawn, play equipment, cooking area, and barbecue area, the plaza is a place for family outdoor play and barbecues that require reservations.

Official Instagram

Social media is often where you can find timely news about Inariyama Mont Blanc, tastings of local brands, weekend events, and seasonal products.

Tourist information corner

Pick up brochures and information on Nishio events, then continue to the tea fields, castle town, or coastal Isshiki area.

Local feel

Reasons to return

Practical ideas and things to consider when spending time here.

Matcha sweets depend more on timing than restaurant meals

Okanoyama Chaya generally closes at 16:00 on weekdays and 17:00 on weekends and public holidays. If Nishio matcha is your goal, plan a visit from around midday to early afternoon rather than leaving it for an incidental late stop.

Source: Official station site and Nishio City facility guide

Access from Route 23 depends on your direction of travel

The Kojima-Ebara Interchange exit offers direct access from the Nagoya-to-Toyohashi carriageway, while drivers heading the other way must use prefectural roads from Nishio-Higashi Interchange. Knowing this route in advance makes the station easier to use as a rest stop.

Source: Nishio City access guide

The early shop opening makes the station especially practical

The shop and local products and produce area open at 6:00, making it useful for picking up food before a long drive. It suits travel for work or a family visit as well as sightseeing.

Source: Official station site and tourism association

Asoboccha Plaza gives families room to reset

The lawn and play equipment give children a short break outdoors when shopping or eating alone would feel dull. The plaza is also described as a place for dog walking and walks, broadening the ways to take a break.

Source: Official station site, Asoboccha Plaza

See more of Nishio beyond the station

Matcha souvenirs are enjoyable on their own, but Inariyama Tea Garden Park and Nishio City Historical Park add the tea-field and castle-town settings behind them. You can choose a short rest or a half-day outing.

Source: Nishio tourism and nearby official sources

Check for temporary closure notices in severe weather

Past notices have announced temporary closures as typhoons approached. The station is normally open year-round, but on days of typhoons or heavy rain, check official notices or Instagram before travelling.

Source: Official notices

Before your visit

Things to check before setting out

Opening and closure days, individual businesses and facilities for children or dogs can affect your plans.

The local products and produce area, shop, and main station generally open 6:00–18:00. Restaurant Ippuku is listed as 7:00–15:00, and Okanoyama Chaya as 10:00–16:00 on weekdays and 10:00–17:00 on weekends and public holidays by the operator and city.
Toilets and parking are available 24 hours. Parking has 66 standard spaces, 34 large-vehicle spaces, and 4 designated accessible spaces.
From the Nagoya-to-Toyohashi carriageway of the Route 23 Okazaki Bypass, enter directly at the Kojima-Ebara Interchange exit. There is no direct entrance from the other carriageway; when returning from Toyohashi toward Nagoya, plan a route via Nishio-Higashi Interchange and prefectural roads.
If Nishio matcha sweets are your goal, visit during Okanoyama Chaya's hours. Later in the day, focus on the shop and produce area.
Barbecue at Asoboccha Plaza involves reservations and items to bring. On an unplanned visit, use the lawn and play equipment for a short break.
According to the city, the rapid EV charger began operating at noon on January 16, 2026, runs 24 hours, and requires registration through a smartphone app.
Temporary closure notices may be posted when a typhoon approaches. On severe-weather days, check official notices and social media before setting off.

Gallery

A closer look

Illustration of a Nishio driving break combining tea fields and local produce

Illustrative image — not an on-site photograph

Food

Eating and shopping

Specialities, places to eat, sweets and bakeries can all give you a reason to stop. Check individual menus for current prices and availability.

Okanoyama Chaya
Inariyama Mont Blanc
See the shop menu
Okanoyama Chaya
Matcha toast
See the shop menu
Okanoyama Chaya
Dairy-farm soft serve
See the shop menu
Restaurant Ippuku
Lemon-simmered fried squid set meal
See the restaurant menu
Restaurant Ippuku
Meals featuring Isshiki eel and seafood
See the restaurant menu
Shop and direct farm sales
Nishio matcha souvenirs and Isshiki shrimp crackers
Varies by product

Food mood

What would you like to eat?

A meal, a sweet treat, market shopping or something to take away: choose a focus for the day instead of trying everything at once.

Breakfast and light food

Bread, rice balls, prepared dishes, breakfast service

The shop opens at 6:00, and breakfast at Restaurant Ippuku starts at 7:00. This is a useful place to pick up food for the road on an early departure.

The restaurant generally closes at 15:00; check the time if you plan a meal later in the day.

Nishio matcha

Inariyama Mont Blanc, matcha toast, matcha souvenirs

Eat sweets at Okanoyama Chaya, then buy matcha confections at the shop. Sampling matcha this way can make a satisfying stop even without a restaurant meal.

The teahouse closes earlier than the shop and produce area, so go around midday or early afternoon if sweets are your main reason for visiting.

A substantial meal

Lemon-simmered fried squid set meal, Isshiki eel, seafood

Choose local ingredients such as Nishio's school-lunch favorite lemon-simmered fried squid, eel from Mikawa-Isshiki, and seafood delivered from Isshiki Fish Plaza.

Allow for a possible wait for a seat or service at lunchtime; a lighter meal or the teahouse gives you another option.

Shopping to take home

Isshiki shrimp crackers, castle-town sweets, cut flowers, vegetables

The produce area and shop offer vegetables, fruit, cut flowers, local sweets, and seafood souvenirs. Even a quick circuit gives you a feel for Nishio's local produce.

Fresh items vary by time and season. Late in the day, keep your choices flexible.

Time outdoors

Asoboccha Plaza, barbecue, a break on the lawn

The plaza has a lawn and a barbecue area that requires reservations. You can combine food at the station with time outside, even if you only stretch your legs briefly during a drive.

Barbecue information calls for reservations and items to bring. For an unplanned stop, use the lawn or play equipment for a short break.

Access