I've been up there a bunch. Maine, New Brunswick, and Nova Scotia all used to be part of Massachusetts in the late 1600s, and you can feel it. Very similar places.

That said, Halifax is a hoot. Nightlife is different than in the US. Bars and Pubs close kind of early, then nightclubs open and stay open very late. Lots of good music and little underground venues. Tons of history there. And the pier is cool. Some nice little restaurants and whatnot. I liked Bearly's House of Blues. Food was good too. Sprouts were amazing, which isn't something I'd normally be saying about sprouts.

St. John New Brunswick is kind of boring. Moncton is a little more interesting, especially if you're interested in Acadian culture, the Dieppe side of the river still speaks it and has some cultural offerings. But New Brunswick's kinda dull, not gonna lie. There's more life and better scenery in Nova Scotia. The tides are interesting too, some of the biggest in the world.

Anyways, I'm not sure what side of the border you're on. But you should know it's closed either way. So no cutting across Maine from Ontario or crossing in from the States.