IOX-AROSA is a ski area located on the eastern slopes of Mt Iouzen in Nanto City in the western region of Toyama Prefecture.
The 6-person 1,650m Gondola at IOX-AROSA goes from base to the top of the ski area, and there are five other pair lifts (380m, 380m, 650m, 240m and 410m).
When it opened for floodlit night skiing in 1998, IOX-AROSA was only the third ski area in Japan to operate a gondola lift for nighttime operations. All the courses are accessible during night skiing (usually) until 9:00pm.
The snow on the Yodel Course is left ungroomed.
IOX-AROSA opened in 1990.
Mountain
statistics
Top/peak (m)
850
Vertical (m)
500
Bottom/base (m)
350
Beginner runs (%)
30
Intermediate runs (%)
50
Advanced runs (%)
20
Longest course (m)
3000
Steepest slope (°)
28
Number of courses
7
Ski lifts
6
Ropeway cable car
0
Gondola
1
Quad lift (4-person)
0
Triple lift (3-person)
0
Pair lift (2-person)
5
Single lift (1-person)
0
Surface lift
0
Information
Normal season dates
IOX-AROSA usually plans to be open from mid- to late December until early May. See below for the actual opening and closing dates in recent seasons.
Normal opening times
IOX-AROSA is normally open from 8:30am until 4:30pm during the daytime on weekdays and from 8:00am on weekends and holidays.
Night skiing
Night skiing is from 5:30pm until 9:00pm on Fridays, Saturdays and Sundays weekends until 7th March 2026. The Gondola and Number 1 lift operate during night skiing and most of the courses of the ski area are available. Snow is groomed prior to night skiing.
Park
There is a Park Area in the upper section of IOX-AROSA by the Number 5 pair lift.
Families & children
There is a kids area by the base area with a snow escalator. Entry to the Kids Park is 800 yen for one day and includes use of the snow escalator. Usually open from 9:00am until 4:00pm.
Lessons
Ski and snowboard lessons are available at IOX-AROSA.
Rental
Ski and snowboard equipment & wear rental is available.
Lift ticket prices
2025-2026 season
Information for the upcoming 2026-2027 season will be added by December 2026
1 day (until 4:30pm)
Adult: 5,000 yen
Child: 2,500 yen
Senior: 4,000 yen
4 hours
Adult: 4,000 yen
Child: 2,000 yen
Senior: 3,500 yen
Night
Adult: 4,000 yen
Child: 2,000 yen
Senior: 3,500 yen
Season ticket
Adult: 47,000 yen
Child: 25,000 yen
Senior: 43,000 yen
1 lift coupon
Adult: 500 yen
Child: 300 yen
Senior: 500 yen
Gondola (one ride)
Adult: 1,500 yen
Child: 800 yen
Senior: 1,500 yen
The 4 Hour ticket is only valid until 4:30pm at the latest.
Historical snow depth data
The following ski season and official snow depth data have been independently compiled by SnowJapan for publication on this website. Where available, the data is updated annually after each ski season.
First and last dates of recent seasons
2025-2026 season: 3rd January - 8th March (65 days)
2024-2025 season: 28th December - 9th March (72 days)
2023-2024 season: 22nd December - 10th March (80 days)
2022-2023 season: 23rd December - 12th March (80 days)
2021-2022 season: 27th December - 13th March (77 days)
Deepest recorded snow depth
2025-2026 season: 295cm on 3rd February
2024-2025 season: 480cm on 23rd-24th February
2023-2024 season: 190cm on 26th-27th January and 10th March
2022-2023 season: 270cm on 1st February
2021-2022 season: 370cm on 23rd-24th February
2020-2021 season: 320cm on 10th-11th January
2019-2020 season: 120cm on 9th and 11th February
2018-2019 season: 220cm on 27th-28th January, 1st-2nd February
2017-2018 season: 450cm on 8th and 14th-15th February
2016-2017 season: 250cm on 26th January and 13th February
2015-2016 season: 195cm on 10th February and 2nd-3rd March
2014-2015 season: 410cm on 13th-14th March
Resources
Weather & snowfall (Japan Meteorological Agency) [open in new window]
Introduction to the region
Toyama Prefecture is located in the Chubu region on the main island of Honshu. Toyama is also part of the Hokuriku subregion, the northern coastal section of Chubu, which also includes Fukui Prefecture and Ishikawa Prefecture (and sometimes Niigata Prefecture).
Toyama Prefecture is bordered by Niigata Prefecture and Nagano Prefecture to the east, Gifu Prefecture to the south and Ishikawa Prefecture to the west.
The ski areas in the prefecture are located across the mountain ranges.
IOX-AROSA is one of 3 ski areas currently operating within Nanto City.
About the information on this page
SnowJapan independently researches, checks and updates the information on this page at least once each year, in the lead-up to every ski season. We also update it whenever we become aware of other changes. The information published on SnowJapan is based on independent research using official Japanese-language sources and is not supplied by ski areas. If you are planning to visit a ski area, we recommend checking the official ski area website for the latest operational information. We take great care to keep the information on SnowJapan accurate and up to date. However, SnowJapan accepts no responsibility for decisions made based on information published on this website.
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