I’ll guide you access to a bus stop from an exit of the JR Nagano sta.
To exit.Turn left. To east exit.Turn left. To elevator.Down to 1st floor.Get off elevator and go around to the right back.Go straight.Go straight. This is bus stop area.For Shigakogen bus stop are [23] and [24].
75 minutes on the bus.
Get off at [Hasuike-hiroba]or[Yamano-eki]
Another way……..
Airport direct taxi [CHUO TAXI] https://chuotaxi.co.jp/english/ ・Shared ride transfer ・JPY 12,700 ~ / person ・Reservation requiredTaxi [Tsubame taxi] http://www.tsubame-nagano.co.jp/sky_resort.htm ・Nagano sta. > Shigakogen ・JPY 12,000~ / max 4 persons ・Driver pick up at the Nagano sta. ticket gate. ・Reservation required
Rental car [TOYOTA Rent a car] https://rent.toyota.co.jp/eng/ ・Nagano sta. / Airport > Shigakogen ・Reservation required ・In winter, change to 4WD car with WINERT TIRES.