Text-free timber entrance and rest area at a rustic Japanese day-use hot spring with two fully clothed travelers

Ishiwari-no-Yu September 2026: Thursday Closures, Last Entry, and Onsen Rules

Travel News Watch

Information checked: August 25, 2026, 8:31 AM JST.

Ishiwari-no-Yu in the Hirano area of Lake Yamanaka has posted its September 2026 operating pattern. The day-use hot spring closes every Thursday during the month, and final admission is 45 minutes before the building closes.

Short answerIn September, Ishiwari-no-Yu is scheduled to open from 11:00 AM to 7:00 PM, with final entry at 6:15 PM and closure every Thursday. The standard admission shown by the facility is 900 yen for adults, 700 yen for junior-high and high-school students, and 350 yen for elementary-school children.

Key Facts For Travelers

Affected placeIshiwari-no-Yu, 1450 Hirano, Yamanakako Village.
September hours11:00 AM-7:00 PM; final admission 6:15 PM.
September closuresEvery Thursday: September 3, 10, 17, and 24.
ParkingThe facility lists free parking for 150 standard vehicles.

Admission And Basic Facilities

The official guide lists admission at 900 yen for adults, 700 yen for junior-high and high-school students, 350 yen for elementary-school children, and free entry for younger children. The prices include the applicable bathing tax.

Body soap and rinse-in shampoo are provided. A hair dryer costs 100 yen for five minutes, a small towel is sold for 220 yen, and a bath towel can be rented for 180 yen. Confirm current availability at reception rather than assuming hotel-style amenities are included.

Food, Rest Areas, And Entry Rules

Visitors may bring food into the building, but outside drinks are not allowed and rubbish from brought-in food must be taken away. The light-meal counter is not operating; the facility lists drinks, ice cream, and seasonal items for sale instead.

The facility’s published rules do not admit guests with tattoos, including small, fashion, or sticker tattoos. People who are intoxicated, unwell, or may have an infectious condition are also refused entry. Review these rules before making the trip because the admission fee applies even if a visitor does not use the bath.

Plan The Return From Hirano

Ishiwari-no-Yu is in Hirano rather than the busier Yamanaka side of the lake. If using public transport, check the current bus timetable and the walk from the selected stop before departure; do not assume a late bus is available after the 6:15 PM final entry.

The September notice says operations may change and directs visitors to the facility calendar. Recheck the official news page on the day, especially around storms or other disruptions.

Traveler Actions

  • Avoid Thursday visits and arrive well before the 6:15 PM final admission time.
  • Bring or rent a towel and carry coins if you plan to use the paid hair dryer.
  • Do not bring outside drinks; take away rubbish from any food brought into the building.
  • Review the facility’s tattoo and health-entry rules before traveling.
  • Check the return bus or other transport from Hirano in advance.

Official Sources

Update History

  • August 25, 2026: Created from Ishiwari-no-Yu’s official September notice and visitor pages, including hours, Thursday closures, final entry, admission, parking, amenities, food policy, and entry rules.