Tonghae is located in Chuncheon city, South Korea at the 37.5439, 129.1069 coordinates. Distance from Tonghae to other cities. are listed below, click on the city name to find distance between. Distance from Tonghae to Wonju 105 km, to Kang-neung 30 km, to Sokcho 86 km. The green marker indicates the location of Tonghae.