Niimi, Okayama / 井倉洞
Ikurado Cave
A huge limestone cave on the upper Takahashi River, 1,200 m long with a height difference of 90 m. Inside are many viewing spots with names such as "Silver Curtain", "Mizugoromo" and "Jellyfish Rock", natural art formed over a long time, and the lit-up rocks look like "stone curtains". Near the exit is the "Arisa no Miya" shrine.
Last official check
28 Sept 2026
Traveler reports
0
Reports open in Phase 2
Next scheduled check
27 Dec 2026
Decide before you go
A short summary made from the official facts below. Check the rows for details.
- Getting there
- Train / Car
- Admission
- Paid (see the price below)
- Closing days
- Has closing days (see below)
Before you go
Only facts we confirmed on official sources are shown. Anything else is marked “Not checked yet”.
- Opening hours
8:30-17:00 (last entry 16:30).
Checked 28 Sept 2026 on the official site- Closed
Open every day.
Checked 28 Sept 2026 on the official site- Admission
Adults (high school and over) 1,000 yen, junior high 800 yen, children 500 yen, under school age free.
Checked 28 Sept 2026 on the official site- Getting there
About 20 minutes by car from Niimi IC (Chugoku Expressway) or about 40 minutes from Kayo IC (Okayama Expressway); about 15 minutes on foot from JR Ikura Station.
Checked 28 Sept 2026 on the official site- Parking
300 cars and 20 large vehicles.
Checked 28 Sept 2026 on the official site- Payment
Not checked yet — we have not confirmed this on an official source yet. Check with the spot before you go.
- Accessibility
Parking for people with disabilities, multi-purpose toilet, nappy-changing table.
Checked 28 Sept 2026 on the official site
Found wrong or outdated information? Let us know
Address: Niimi, Okayama (Japanese address: 岡山県新見市井倉409付近)
Official site: https://www.okayama-kanko.jp/spot/detail_10936.html
Location
Smaller pins are other spots nearby.
Nearby spots
Photo: エヴァンズの秘書 / Wikimedia Commons, CC0 (resized)Makido CaveOkayama7 km away (straight line)- No photo yetFukiya Furusato VillageOkayama9 km away (straight line)
- No photo yetHirokane ResidenceOkayama11 km away (straight line)
- No photo yetBitchu Matsuyama CastleOkayama16 km away (straight line)
Distances are straight-line distances, not travel distances.
Crowds
- Crowd level
Not checked yet — no official source yet, and not enough traveler reports.
- Best time to visit
Not checked yet — no official source yet, and not enough traveler reports.
- Peak time
Not checked yet — no official source yet, and not enough traveler reports.
- Busiest days
Not checked yet — no official source yet, and not enough traveler reports.
- Busiest season
Not checked yet — no official source yet, and not enough traveler reports.
- Latest traveler report
- None yet
Traveler crowd data by time of day appears after 5 traveler reports (0 so far).
You can check typical busy hours in Google Maps ("Popular times" on the place's page). Open this spot in Google Maps
Visiting respectfully
- RulesTo protect the stalactites and other natural monuments and the cave ecosystem, pets may not enter the cave (there are no facilities to leave them).Checked 28 Sept 2026 on the official site
Verification log
- 28 Sept 2026First check · Tourism board · https://www.okayama-kanko.jp/spot/detail_10936.htmlHours, closing days, fees, access, parking, accessibility, description, address and coordinates read from a tourism organization's site.