Traveling from Kagoshima to Hiroshima can be accomplished via several train services, including the Shinkansen (bullet train), limited express trains, and local trains. The Shinkansen offers the fastest option, whisking passengers from Kagoshima Chuo to Hiroshima in around 2 hours, providing a comfortable and efficient travel experience. The limited express trains, while slightly slower, still offer a convenient journey with fewer stops and ample amenities. For those seeking a more budget-friendly choice, local trains provide an economical alternative, although the travel time is significantly longer at approximately 5 hours, allowing for scenic views of the Japanese countryside along the way. Depending on your preference for speed, comfort, and budget, you can choose the service that best meets your travel needs.