cjp is a student card which you can purchase on cjp.nl
with cjp card you can enjoy korting with a lot of museums and other stuffs (advertise)
however, with 1 cjp card you can only buy 1 ns dayticket for 10euro till 31st december. and the ticket is valid till 31st January 2011. you can only travel with ns train not with other rail companies like ice, fyra, ariva, veolia ... |