That last pic is Myakka Road just north of the Park. I didn't go to the State Park, but now that I know how close I was, I'll plan a ride through there to the rail/trail and then back to Sarasota via Clark (based on insight provided to me by the Brit). The bike shop indicated I wouldn't like the rail/trail because of a speed limit, but I might see it as a restful reprieve on a long ride.

Plane leaves in a few hours, so I'll start planning For future rides...