Campbellton sits on the Restigouche River at the northern edge of New Brunswick, looking across to Quebec and backed by the rounded mass of Sugarloaf Mountain. It is not a polished resort town, but the setting is strong: river, bridge, mountain, and a waterfront that reminds you how much of the town's story comes from salmon.
The best reason to stop is Sugarloaf Provincial Park, just outside town. In summer it has hiking and biking trails up and around the mountain; in winter the same park becomes a local ski and snow-sports hill. The summit views pull together the Restigouche, Chaleur Bay, Campbellton, and the hills of the Gaspe across the water.
Back in town, the riverfront is easy and pleasant rather than dramatic. Restigouche Sam is the unavoidable photo stop, an enormous stainless-steel Atlantic salmon on Salmon Boulevard. Nearby, the Restigouche River Experience Centre gives the salmon-fishing culture, river ecology, and Acadian, Scottish, and Mi'gmaq threads some context.
Campbellton works best if you are already travelling the Acadian coast, the Gaspe route, or northern New Brunswick. Give it a spare day for the mountain and the riverfront, not a whole holiday.