Since honored guests, including Crown Prince of Romania and the Prince of Wales, have also enjoyed this trip, the way from Oji (literally meaning prince) to Yamamoto-hama was known as "Kyoto prefectural road No.402 (Oji Namikawa Route)".
ルーマニア皇太子やイギリス皇太子などの賓客も興じたことから、王子から山本浜までの道のりは『京都府道402号王子並河線』と呼ばれた。