Japan National Parks
list of national parks in Japan
http://www.cgu.ac.jp/kyouin/iwahata/np_japan.htm

JHN Travel Web
Travel agent specializing in expatriot residents in Japan, and inbound tourism into Japan. Individual and group booking possible.
http://www.jhn-travel.com/

Nippon Travel Agency (NTA)
Japan Travel Agent for flights, the Japan rail pass, hotels, hot springs, exhibition coordination and private and corporate tours in Japan.
http://www.nta.co.jp/