The way points of this bicycle route:
Turn Right to get on the Great River Trail
Bicycling Capitol of the World! (Right, they have one puny bike shop, but decent coffee shop to eat at and hey, the Deke Slayton Astronaut Museum with bikes.
These tunnels are really fun. You really should have a light in the first one.
In middle tunnel of the three, you really shouldn't try and ride your bike down the middle with your sunglasses on. This produces an Alfred Hitchcock effect that eventually does spin, greatly disturbing the person following as you zig and zag more and more.
Tunnel 3 shorter, but still refreshingly cool
They went to the trouble of putting up a bathroom at the depot, but here is no spigot for filling your water bottles.
Eat Steak at Angie's. You'll get the local stares. But it's good steak and you really have no other choice.