Traveling from Tsuruga to Karuizawa is predominantly serviced by the Hokuriku Shinkansen line. The Kagayaki Shinkansen operates on this route, achieving impressive speeds of up to 260 km/h (162 mph) and covering the distance in approximately 4 hours. This high-speed service has limited stops, ensuring a direct and efficient journey between Tsuruga and Karuizawa.
Additionally, the Hakutaka Shinkansen offers an alternative option, albeit with more stops along its route, which extends the travel time to about 4 hours and 30 minutes. While both trains provide comfortable seating in Ordinary and Gran Class, the Kagayaki is preferable for those prioritizing speed, whereas the Hakutaka allows for a broader experience of scenic stops. Both services are equipped with modern amenities to ensure a pleasant travel experience.