Traveling from Okayama to Kurume, passengers can opt for the Shinkansen service, specifically the Sakura and Mizuho trains, which operate along this route. The Mizuho Shinkansen offers the fastest connection, reaching speeds of up to 285 km/h (177 mph) and completing the journey in approximately 1 hour and 30 minutes, with fewer stops. It connects major cities along the line, making it an efficient option for travelers. The Sakura Shinkansen, while slightly slower at speeds of 240 km/h (149 mph), takes around 1 hour and 50 minutes, stopping at additional regional stations, including Fukuyama and Shin-Kurume, providing access to more destinations along the way. Both services include comfortable seating options and onboard refreshments, but the Mizuho provides the most rapid travel experience, making it favorable for those prioritizing speed.