That's a good point! I also forgot I had some Hilton points and there's a property in Sydney. How about this instead:

Day 1: travel, arrive in Halifax (YHZ) late night.
Night 1: Halifax
Day 2: Halifax area
Night 2: Halifax
Day 3: Nova Scotia (SW of Halifax)
Night 3: Halifax
Day 4: Nova Scotia (4-5h drive to Sydney + Sydney)
Night 4: Sydney
Day 5: Nova Scotia (Cabot Trail/Cape Breton)
Night 5: Sydney
Day 6: Nova Scotia/New Brunswick (5h drive to Moncton)
Night 6: Moncton
Day 7: New Brunswick (Hopewell Cape, St. Martins, Saint John, Saint George)
Night 7: Saint John
Day 8: NB/Prince Edward Island (ideally hit the Bay of Fundy locations at a different time of day to see the tide)
Night 8: Charlottetown
Day 9: Prince Edward Island
Night 9: Dartmouth
Day 10: travel, depart YHZ in the morning

Unfortunately, we're arriving too early in the month for Miramichi River tubing, that doesn't start until the 24th.