We recently took a trip to Saitama and did the Glico Pia East Factory Tour. It was about an hour commute by toll-way. Tolls cost 1370 yen each way. Reservations are required in advance. We had a group of 8, ages 3+. The tour is done entirely in Japanese with no English translators available. The company history explanation does have English subtitles if you ask. The tour is 70 minutes. No strollers or pictures were allowed in most of the factory. We had fun touring the factory and learning how Pocky & Pretz sticks are prepared & packaged. If you have 2nd/3rd graders, they are allowed to decorate their own Pocky stick if you obtain a ticket at the beginning of the tour. (No adults or younger children allowed to participate in the Pocky stick decorating part). The cost of participation is 500 yen. They get to keep the sticks they decorate. You also receive a sample bag for visiting the factory. The tour admission & parking is free. More information can be found on this site: https://travel.
– Jennifer Secor, June 2018