Campobello turned out to be the highlight of our trip. Not real sure what we would find there when I suggested to Shelly we go; other than an international park (jointly run by the US Park Service and Canadian Park Service) preserving Franklin Roosevelt's summer home.

Even the US Park Service web site suggests only two hours to tour the park. When we got there, we took the tour, and they suggested we stay for "Tea with Eleanor" which we declined, partly because we had already booked a whale watching trip for that afternoon.
We booked with "Captain Riddle's Whale Watching Tours", and got on a tour with another family. Captain Riddle, actually Brendan Flynn, also picked up his 14 year old son and 11 year old daughter, so there were nine on the boat. We had a wonderful 3 hour afternoon!
He took us by a bald eagle nest on shore

but in case we didn't get good pictures because of the background, we also went by one out on an island

We also saw porpoises, sea lions, and, oh ya, whales

I would call this a "must do" for anyone camping on the island. There were other tours on the water from New Brunswick and Maine, but we think ours was the best venue. Some folks were in Zodiacs, some in much larger boats. We had a wonderful time talking with the other family, and with the skipper and his kids about life in a half Canadian, half US, family operating on an island where the one bridge goes to Maine, and the only other way off is a car ferry to New Brunswick. Incidentally, there are no gas stations on the island, so they have to buy US gas. During COVID they eventually were able to get waivers to travel across the border.
I'd expected a much more touristy area, but found, in fact, only two restaurants on the island open for dinner (both good). We tried poutine for the first and second times, but I won't tell you which restaurant served the better version--a matter of taste. The lady who ran the Campobello Gift House (which also sold used paperbacks for 50 cents apiece, US or Canadian $, you pick) told us more than half of the residents were Americans. She says the last batch to buy houses didn't seem to realize just how quiet the island was, and sold out after a few years. She feels the current crop has a better understanding. But, she says, people come for a few days or a week or more, and are at the used book section for something to do.
We took the time and went to see Head Harbour Lightstation on the North end of the island (also saw it from the whale watching boat)

At low tide, one can go out to the lighthouse, but we didn't time it right to do so. We also found the Mulhollean Point Lighthouse, near the bridge and only a hundred yards or so from Lubec Maine
At Rooselvelt International Park there are some hiking trials, which we didn't have time to try. If we had been there more than one full day, I expect we would have.
We stayed at Herring Cove Provincial Park. Herring Cove comes out at the wide end of the Bay of Fundy. (Someday, we'll go to the other end to see the reversing falls.)


Our camp site was clean and neat

Free showers, which, after three nights in the wilderness at Baxter, were appreciated. The shore breezes kept the bugs away, so we didn't really need the mosquito net up, it was there to dry out.
OK, so I know there is a stereotype about neat, clean Canadians, but, no joke, as we were preparing to leave on our last day, there were two park employees with a shop vac going around taking the front covers off of the shore power pedestals and vacuuming out the dirt from inside. Just sayen...
So this was the furthest East we've taken our teardrop so far, and the first time out of the US. No issues with that. Shelly even figured out how to set the Taco so it read in km/hr. I tried to get Canadian dollars at an ATM, but there was an issue with it reading my debit card. I paid for most things with my credit card, so we'll see later how much I was charged for exchange transactions. Hopefully not too much.
Oh, Campobello is on Atlantic Time; one hour earlier than Eastern Time, and for things like showing up for whale watching, that's important. Sometimes the cell phones pick up the right cell tower, sometimes not, so that time switches back and forth. I changed the clock on the teardrop. Forgot to change it back though. We didn't have any scheduled events at Acadia, so didn't notice until I happened to compare it to my phone when we were back in Vermont. It's a good camping experience if it doesn't really matter!
Tom