Frequently Asked Questions
English answers are machine-translated from the property's Japanese information. Please confirm important details with the property directly.
Or browse the answers we’ve already prepared below.
These answers were written by AI from the property's official website. The property has not checked them. Collected on July 29, 2026. Prices and times may be out of date, so please confirm anything important with the property.
Access (1)
How do I get there from central Tokyo?
About 15 minutes by taxi from Ozaku Station on the JR Ome Line, or about 25 minutes by bus from Higashi-Ome Station. By car, come via the main roads through Ome City.
Reservations (1)
How do I book?
Please book through the official website (mamadaya.com) or by telephone on 0428-74-4221. Day courses may be limited depending on overnight bookings.
Facilities (1)
I heard there is a cafe on the grounds.
Yes, there is a cafe called Yuba on the grounds, ideal for a moment after your bath.
Facility information (1)
Is Mamadaya the only place to stay at Iwakura Onsen now?
Yes. There were once five inns at Iwakura Onsen, but after closures and changes of business, as of 2026 Mamadaya is the only one still taking overnight guests.
Day-use bathing (1)
Can I bathe without staying overnight?
There are day courses combining a meal in a private room with use of the hot spring. Bathing alone is not normally accepted. The usual times are around 12:00-16:00 at weekends and on public holidays, but this varies with bookings, so please check in advance.
Hot springs (2)
What kinds of bath are there?
There is a characterful rock bath built with natural stone, where you bathe looking out at the stream outside, along with a stone garden bath.
What sort of hot spring is Iwakura Onsen?
Iwakura Onsen stands on the banks of the Kurosawa River in Ome City, Tokyo, and is an old spring with 1,200 years of history. The water is a simple sulphur spring, and the source is designated a historic site of Ome City. It is known as the only hot spring village in Tokyo.
Sightseeing (1)
What sights are there nearby?
The inn sits at the gateway to Chichibu-Tama-Kai National Park, with nature to enjoy in every season. Sights around Ome City and the Yoshino plum village are also nearby.
Atmosphere (1)
Does it feel like a remote hot spring?
Although it is within Tokyo, the inn stands quietly among the hills along the Kurosawa River, in surroundings that feel a world away from the city. It is an old spring with 1,200 years of history, with the calm atmosphere of a long-established inn.
Parking (1)
Is there parking?
There is a car park. Please contact the property directly about capacity and charges.
Other (3)
Is there parking?
Parking is available. Please contact the property for details.
What is the address?
5-3140 Ozoki, Ome City, Tokyo
How do I get there?
About 15 minutes by taxi from Ozaku Station on the JR Ome Line, or about 25 minutes by bus from Higashi-Ome Station.