罢补办颈箩颈谤颈-艒箩颈 is one of five major 艒箩颈 (smaller shrines along the Kumano Kod艒). It marks the beginning of the passage into the mountains and today serves as the trailhead for the Nakahechi route of the Kumano Kod艒. It was once a grand affair, where pilgrims in the 12th and 13th centuries performed ablutions before setting out (the river waters to the right were said to have healing powers), but it's now rather humble.
It's a 40-minute bus ride here from Kii-Tanabe Station; take a Hong奴- or Shing奴-bound bus for Takajiri (楼960).