There are more than enough powerful lifeboats on the ferries, and the crews are well trained for any emergency. I'm very interested in Newfoundland, and I'd like to read a good book of fiction about the place before I arrive. The Colony of Unrequited Dreams by Wayne Johnston, Alfred A. Knopf Canada, Toronto, 1998. I don't like National Parks, Provincial Parks, Reserves, or any other such areas. They are places inhabited by employees who often break their own rules, and they are only the result of ideas hatched by people who consider themselves the elite.
Nature includes humans doing what humans naturally do.
Newfoundland is an easy place to move around in, and meet people. You'll find what you are looking for if you travel around and stop once in a while to meet people. Most of Newfoundland is Crown land, so you can get out and walk through the bush almost anywhere.