Okuoikojo Station Observatory in Shizuoka is a picture-perfect spot overlooking the emerald waters of Lake Sesso, with its tiny train platform seemingly floating above the lake and connected by the striking Okuoi Rainbow Bridge. While you can reach it via the Oigawa Railway, the easiest way to explore the wider area is by hiring a car, as the region is remote and dotted with scenic roads, hidden lookouts, and mountain trails. From the parking area, a short but steep walk takes you across the bridge and up to the observatory for sweeping views that feel straight out of a postcard. What makes the visit even more memorable is the small Kojo Station Café perched by the station, where you can pause with a drink while soaking in the surreal scenery before continuing your adventure through this lesser-known part of Japan.