Upon exiting the Shinshiro I.C. of New Tomei Expressway, turn right and head northeast by Route 151 for 1.9km. Turn left at Arumi crossing (有海), entering Route 257 and heading northwards for 20km until the intersection with Route 389 (Damine (田峯) crossing). Turn left to continue heading north by Route 257 for 22km. At Nishinagura crossing (西納庫), turn right entering Route 507. Head eastwards, then northwards, for 7km. Upon approaching the intersection with Route 80, keep your left and take the road to the left for 100m. Turn left to enter Route 80, and soon after 50m, turn left again to take the 1km-long uphill road to the observatory, which sits amidst the wind turbines.