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Voykit pocket guide · Japan
Aioi
相生
Skip Aioi unless you need a quiet Shinkansen stop or are visiting the Kanjōsan Castle Ruins: half a day is enough.
Aioi is a small port city on the Sanyo Shinkansen line between Himeji and Okayama. Its main draw is the 13th-century Kanjōsan Castle Ruins, a Muromachi-period site on a hill. Most travellers pass through without stopping; the city works as a brief break on a longer journey or as a quiet base for exploring western Hyogo.
- Country
- Japan
- Local name
- 相生
- Best months
- Mar–May, Oct–Nov
- Avoid
- Jul–Aug (hot and humid)
- Stay
- 0 nights
Checked 2026-09. Prices, hours and rules change; anything marked (check) is not confirmed.
Essentials
- Currency
- JPY
- Money
- Cities are increasingly cashless; temples, small restaurants and some lodging taxes still want cash.
- Daily spend
- Budget ¥5,000–8,000 excl. bed · Mid ¥8,000–12,000 excl. bed · High ¥12,000+ excl. bed (estimate; check)
- SIM and data
- Data-only eSIMs are the easy route: buy before you fly; voice SIMs need a residence card.
- Emergency
- Police 110 · Fire and ambulance 119
- Plugs
- Types A, B · 100 V · 50 Hz east (Tokyo), 60 Hz west (Osaka) · Most sockets are two flat pins without earth; European and UK plugs need an adapter. Phone and laptop chargers handle 100 V.
- Tipping
- Restaurants and bars: No tip; staff will chase you to return money left on the table.; Taxis: No tip; pay the meter.; Ryokan: Optional: ¥1,000–3,000 in an envelope for the room attendant; never loose cash.; Private guide: Not expected; a small gift or a thank-you meal is more usual.; Hotel porter: No tip.
- Water
- Safe from the tap everywhere; stations and parks have fountains.
- Toilets
- Free, clean public toilets in stations, parks and konbini; paper goes in the toilet. Rural and old stations may have squat toilets.
What things cost
| Item | Price |
|---|---|
| Coffee | ¥300–500 |
| Ramen or soba | ¥700–1,000 |
| Beer (can at konbini) | ¥250–350 |
| 5 km (3.1 mi) taxi3.1 mi (5 km) taxi | ¥2,000–2,500 |
Desk estimates, checked 2026-09; check locally.
Get in
By air
- KIX · Kansai International
- About 1 h 30 min by Haruka limited express to Shin-Osaka, then Shinkansen to Aioi
- UKB · Kobe Airport
- About 1 h by port liner and Shinkansen via Shin-Kobe
Typical fares
- Aioi Station → Kanjōsan Castle Ruins (walk)
- about 20 min uphill
- Shinkansen Aioi → Himeji
- about ¥1,500, 10 min (check)
- Shinkansen Aioi → Shin-Osaka
- about ¥4,500, 30 min (check)
Show 7 more sections and the pocket cardHideGet around, See and do, Sleep, Phrase card, Etiquette, safety and scams, One and two days, Sources, Pocket card
Get around
Aioi is walkable on foot; the castle ruins are a 20-minute uphill walk from the station. Taxis are available at the station.
See and do
Known for
- Kanjōsan Castle Ruins
- Port and fishing harbour
- Shinkansen stop
Day trips
| Where | How | Time |
|---|---|---|
| Himeji Castle | Shinkansen from Aioi, about 10 min | About 30 min |
| Okayama | Shinkansen from Aioi, about 20 min | About 40 min |
| Kinosaki Onsen | JR limited express from Aioi, about 1 h 15 min | About 1.5 h |
Sleep
- Around Aioi Station
- Closest to Shinkansen access; a few business hotels and ryokan.
Phrase card
| English | Say or show |
|---|---|
| Excuse me / Sorry | すみませんsumimasen |
| Thank you | ありがとうarigatō |
| How much is it? | いくらですか？ikura desu ka |
| Where is the castle ruins? | 城跡はどこですか？shiro ato wa doko desu ka |
| Can I pay by card? | カードで払えますか？kādo de haraemasu ka |
Etiquette, safety and scams
Etiquette
- Greeting: A small bow; a handshake if the other person offers; avoid: Hugs, back slaps, loud greetings
- Names: Family name plus -san; avoid: First names unless invited; adding -san to your own name
- Paying: Put money in the tray at the register; avoid: Tipping, or leaving loose cash for staff
- Trains: Queue at the floor marks, phone on silent, ask before reclining on the Shinkansen; avoid: Phone calls, eating on crowded commuter trains, blocking doors with bags
- Escalators: Stand on the side locals use — left in Tokyo, right in Osaka; stations now ask people to stand still on both; avoid: Stopping at the top or bottom
- Shoes: Off at the step-up entrance; toilet slippers only inside the toilet; avoid: Stepping on tatami in shoes or slippers
- Shrines: Rinse hands at the basin; bow twice, clap twice, bow once; avoid: Walking down the centre of the approach, which is for the deity
- Gifts: Offer and receive with both hands; bring a small omiyage for hosts; avoid: Sets of four; cash outside an envelope
Scams and watch-outs
- Kanjōsan Castle Ruins are a hilltop site with no shelter: bring water and sun protection.
- English information is limited; the tourist association has a guide map in English (check).
- Restaurants close early; eat before 20:00 or bring food.
Aioi is a quiet, safe city. The main risk is the uphill walk to the castle ruins in summer heat.
One and two days
No timed day plan for Aioi yet. Suggested stay: 0 nights. Build a day from the list below, mornings for the big sight.
- Kanjōsan Castle Ruins
- Port and fishing harbour
- Shinkansen stop
Sources
Written by Voykit; facts cross-checked against these sources, last desk check 2026-09. Prices, hours and rules change: check on the day.
- Aioi City official website: www.city.aioi.lg.jp/
- Aioi Tourist Association: aioi.in/
- Wikivoyage: Aioi, revision 4882790 (CC BY-SA 4.0): en.wikivoyage.org/w/index.php?oldid=4882790
Pocket card
Cut along the border and keep it in your wallet. Show the local-script lines to a driver.
Printed from Voykit (/aioi). Written by Voykit; checked 2026-09. Estimates only: confirm prices, hours and entry rules on the day.