On the Takasaki to Karuizawa route, travelers have the option of taking the Shinkansen, specifically the JR Asama service. This train operates on the Nagano Shinkansen line and reaches speeds of up to 260 km/h (162 mph), providing a swift and efficient journey. The travel time is approximately 1 hour, ensuring that passengers can quickly reach their destination while enjoying comfortable seating options available in both Ordinary and Green class (Economy and First).
The Asama service is known for its punctuality and smooth ride, making it a reliable choice for passengers. Unlike some other routes, this specific journey benefits from high-speed rail, allowing for a direct and fast connection. Additionally, onboard amenities include power outlets and refreshments, enhancing the overall travel experience. With the Asama service, travelers can expect a blend of speed and comfort, making it a suitable option for both leisure and business trips.