In Bridgeport, near the end of the bridge opposite the main town, there are some fishing spots in the big river; one of them is right near the "Cabin". Try as I might, my Sims have been unable to fish these spots - when I click on the fish, my Sim just does the "path blocked" stomp dance.
Am I missing something? Is there someplace in Bridgeport to rent a boat or something? I've searched on "Bridgeport fishing" and come up empty.