SSK, or Shikoku Shinkansen, is a high-speed rail line in Japan that connects the islands of Honshu and Shikoku. It is part of the larger Shinkansen network, known for its efficiency and speed, allowing passengers to travel quickly between major cities. The line enhances connectivity and promotes tourism in the region. The SSK features modern trains that can reach speeds of up to 300 km/h (186 mph). It serves several key stations, including Okayama and Takamatsu, making it a vital transportation option for both locals and visitors. The line is designed to provide a comfortable and reliable travel experience.