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Mt. Aso park road access hours
Duration
Time
March 20 – October 31
 8:30 a.m. to 5:30 p.m.
/ Closed at 6:00 p.m.
November 1 – November 30
 8:30 a.m. to 5:00 p.m.
/ Closed at 5:30 p.m.
December 1 – March 19
 9:00 a.m. to 4:30 p.m.
/ Closed at 5:00 p.m.

Hours are extended during the Golden Week and New Year’s holidays
Please be advised that the above hours may be changed due to conditions at the crater, such as the extent of gas emission.