They got it. You can ride your bike on the street.
No.
As the previous response indicated, you aren't able to take your bike inside the Japanese Garden. The place is full of ups, downs, steps, and a few "floating pathways". No to mentioned there are plenty of people walking around which would make riding the bike close to impossible without bumping into someone. That being said, the place is beautiful and definitely a must if you are already at the park. Enjoy your trip!
No, inside of the garden is not possible
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