Finding a friend to go hiking, canoeing, and camping with might be an effective thing to do. Also, there are probably locations that offer wilderness first aid courses in your city. Getting basic safety stuff right is probably lower-effort than taking a wilderness first aid course, though.
wilderness first aid course
I've just ordered the course manual - it's 1/20th the cost of the course, and since I'm trying to educate myself rather than acquire the certification, it seems well worth the cost.
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