For the journey from Osan to Naju, travelers can choose between the Mugunghwa-ho and the KTX trains. The Mugunghwa-ho operates at a speed range of approximately 70-110 km/h and takes about 3.5 hours to complete the trip, while the KTX, a high-speed train, reaches speeds of up to 300 km/h, reducing the travel time to approximately 2 hours. Both trains offer comfortable seating, but KTX provides additional amenities such as onboard food services and more spacious cabins.