"Marine World Uminonakamichi operates with seasonal schedules: general opening hours are 9:30-17:30, with extended hours during Golden Week and summer (9:30-21:00), and shorter winter hours from December to February (10:00-17:00). Adult admission is ¥2,500 for high school students and older, ¥1,200 for elementary and junior high students, and ¥700 for children ages 3 to elementary school age. Last admission is one hour before closing.
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