Train : http://www.narita-airport.jp/en/access/train/index.html

Airport Limousine Bus : https://www.limousinebus.co.jp/en/

Train (Use JR Nagano Shinkansen from Tokyo, Ueno or Ohmiya station) : http://www.hyperdia.com/

Bus (Take the high-speed bus from the East exist of the Ikebukuro station) :
http://www.seibubus.co.jp/kousoku/line/line_chikuma.html

Taxi (approximately 5 to 7 minutes):
Five minutes from the taxi terminal at the Karuizawa station (North exit) by taxi.
The taxi fare is 1100 to 1200 yen.
Simply ask the driver to go to "Candytuft," and he will take you to our pension.

On foot (1.9 km, approximately 25 minutes):
Turn left immediately after leaving the Karuizawa station (North exit) and go straight along the railway.
Go over the thirdbrown pedestrian overpass (in front of a high school) and turn right.
Go straight for 20 m and turn left (after Pension Pierrot); you will see Candytuft straight ahead of you.