Yes, at every stop, there are convenient restrooms along the Acadia park tour.
Yes at all stops
Yes all stops inside of Acadia have restrooms available
Yes, at several stops
I went on the 2.5 hour national parks tour. I believe there are restrooms at the Cadillac mountain stop. Full water and sewer. There is also restrooms at thunder hole but those are basically a high end out house. No water just hand sanitizer.
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