I don't have first hand info on biking in the province, but you might want to check these sources: http://www.explore.gov.ns.ca for tourist info

http://www.nswebguide.com/links/sports-recreation/cycling

http://www.atl-canadacycling.com/planning/tour/tour07.html

http://www.bicycle.ns.ca

There is also a book called Biking to Blissville published in paperback by Goose Lane Editions, written by Kent Thompson, that deals with biking trails in the Maritimes.

Take care, Collette Halifax, Nova Scotia