Nova Scotia is one of the Maritime provinces of Canada, known as Canada's Ocean's Playground.
Going North to Cape Breton, New Brunswick, Quebec, and the rest of Canada
Take the #55 Port Wallace bus from the Bridge Terminal in Dartmouth, and get off at the last stop, where it turns around. From here, walk straight ahead and to your right and climb up the hill to Highway 118. You want to be on the side closest to the bus stop. There is a good wide place to pull over here and good visibility. A lot of the traffic is going to the airport, but get a lift there anyway, because it will increase the chances that passing cars are going longer distances. If you are going to Cape Breton, you need to get off near Truro (the next big town, about an hour drive). Tell your driver and they should know where to drop you off, where the 102 meets the 104. Good luck!
Going North West
Highway 101 goes to Wolfville, Kentville, the rest of The Valley, and Yarmouth. Take the #80 Sackville bus to the Sackville Terminal and then climb up on the highway on ramp to get a lift. A lot of people commute from the Valley into town for work, and Wolfville is a big university town, so this road is quite well traveled.
Going South West
You want to get onto highway 103 to get to Mahone Bay, Bridgewater, and other South shore towns, so take the #52 Bayers Lake or the #21 Timberlea bus to Lakelands Blvd, and then walk south out to the highway. There is a big sign here for the vehicle traffic, so you should have no problem getting in the right spot.