I'm sure you're going to love it. Something like 18 years ago I went on an East Coast road trip in late summer, and it was so so beautiful and fun. We spent more nights in a tent in the national parks than we did in hotels to save a bit of money (probably would spend more nights in hotels nowadaysWe're driving out to Prince Edward Island, then to Halifax, and then to Cape Breton Island.
I'm going with my Mom, my brother, and my niece! What a fun crew. It was my Mom's idea.

PEI is very cool. Wild driving across that long-ass bridge, it seems to just go on forever. Back then it cost something like $60 to cross it - be curious to learn what the toll is these days. We spent a few nights at an Anne of Green Gables B&B. There's so much Anne-themed stuff there, as one might expect.
The Bay of Fundy is a popular destination for a good reason. It was kind of mind-blowing, seeing exposed seabed as far as the horizon, and then becoming ocean once more. You all will dig it.
We'd planned on taking the ferry to Newfoundland or maybe checking out Cape Breton, but we simply ran out of time and had to head back home before uni classes started again. Would love to go back one day and see some more of the sights and enjoy more cultural experiences.