Nova Scotia is a very beautiful province, there is a lot to see and do over the whole province. Most campgrounds are open until the week of Oct.15th. Maybe some of the smaller seasonal restaurants/takeout might close when summer is over or school is back in , but all reg. places to eat are open .
Like others have said should not be too hard to get into campgrounds from Sept. on until the season is over.
I will second Murphy's Campground as a place to visit, we stayed there as a drive in camper years ago , we love it and the people so much we became a seasonal for quite a few years, now we still try to get back at least once a year. Very nice family owned campground.
Also do Mariner Cruises on Brier Island to see the whales in the Bay of Fundy it was a fantastic experience for my wife and I.
Enjoy the province we live here and still find lots to do and enjoy it all
and the Girls
1997 RoadTrek 170