This game is the "Joe Pera Talks With You" of interactive fiction.
Ryan Veeder's Authentic Fly Fishing makes up for every Inform game that's ever felt like a blank room with puzzle components glued down in front of you. The environment is solid and dynamic, but not overly dense: perfectly balanced. And it's very candid about its limitations. That isn't a downside: by gently explaining the walls of our comfortable game of pretend, we can preserve our own immersion by staying inside those walls and sitting by the lake together and doing as much or as little as we'd like today.
My one complaint is that Ryan Veeder is (Spoiler - click to show)terribly mean about insects' appearances.