Rokkengawa is a canal running close to Villa of Tanaka Castle. It is so named because the width of the river is 6-ken(10.8 meters in width). The trail along the river is a nice place to stroll and during summer the trees give nice shades. Children love this riverside area because feeding carps is a lot of fun.
Founded in 730, this shrine is also known as the northernmost natural habitat for some of the warm-area plants such as Proteaceae, Symplocos glauca and Quercus Gilva. The forest around the shrine is very relaxing. It is definitely the place for birdwatchers. I found a nice uphill trail beside the small Akiha shrine inside the precinct. You can relax or enjoy birdwatching under the verdant trees.
Renshoji Temple, founded in 1195, is one of the temples built by Naozane Kumagai, late 12th century warrior-turned-priest. The Main Gate of the temple was donated by the lord of Tanaka Castle in 1811. The biggest draw of the temple is a huge Chinese juniper, said to be about 700 years old. The juniper tree is at the backside of the temple from the path at the right of the main hall.