Most people who visit Jindai Botanical Park have no idea that there is a separate section that contains a lovely aquatic plant garden and ruins of an ancient castle. This section is located in front of Jindaiji Temple, rather than behind it – on the opposite side of the main street.
Streams around the temple flow into this garden to create a marsh filled with irises, reeds, and other wetland plants. Above the marsh are walking paths through the woods, fields planted with soba, and a large, grassy lawn that is perfect for picnics.