Butze Rapids
If you are only going to do one hike in Prince Rupert, I would say do this one. Butze Rapids is a well-maintained trail through coastal rainforest and bog, and is one of the best ways to access the water on Kaien Island. It’s a popular trail, but not suffocatingly busy. You only need tennis shoes. It comes out on Grassy Bay, a beautiful bay overlooking some mountains/hills, and the reversing rapids in Fern Passage, which roar with white water when the tide switches direction.