Japan National Route 42

National Route 42
国道42号
Route information
Length504.6 km (313.5 mi)
Existed1 April 1959–present
Major junctions
East end National Route 1 in Hamamatsu
West end National Route 24 in Wakayama
Location
CountryJapan
Highway system
National Route 41 National Route 43

National Route 42 (国道42号, Kokudō yonjūni-gō), also called Kumano Kaidō or Tropical Route is a national highway connecting Hamamatsu, Shizuoka and Wakayama, Wakayama in Japan. Part of the route requires crossing Ise Bay on the Ise-wan Ferry. It is the 8th longest national highway in Japan.