Amateur seeking advice on Northern Ontario camping trip

[Fossil Fish]

I camped at Chutes a few years ago. There is not much as far as fish in the park itself other than bluntnose minnows, but in the nearby Spanish River, I caught walleye, silver redhorse & channel catfish all with a worm on or near bottom. There are a few spots for shore access if you don't have a boat. If you do, there is a launch in Massey that was never busy when I was there. If your route takes you through nearby Espanola, there are decent spots there specifically for shore fishing.
https://www.espanola.ca/fishing-a-boating