The Tokaido Main Line connects more than 500 kilometers between Tokyo and Kobe (although its name and operating company changes during the journey due to the great distance). It also happens to be the fastest way to travel from Tokyo to Yokohama without using the shinkansen (bullet train)–it takes only about 25 minutes. The Tokaido Line is also a convenient option to reach the famous seaside resort town of Atami.
Learn more about places to visit along the Tokaido Main Line route: https://shorturl.at/UciIE