Yes, there is an admission fee for specific areas. The Hirosaki Castle Honmaru and Kita-no-Kuruwa areas require a ticket priced at ¥320 for adults and ¥100 for children. A standard ticket granting access to the castle, botanical garden, and Fujita Memorial Garden is available for ¥520 for adults and ¥160 for children. The surrounding Hirosaki Park is free to enter.