Cheeca Lodge and Spa

I am in the Florida Keys. I am driving a Cadillac equipped with a state-of-the-art navigation system. But there is really only one place to go: the Overseas Highway, running over a long causeway from Key West all the way to the mainland, with the waves of the Atlantic lapping on my right and the warm Gulf of Mexico to my left. My challenge: Can I still manage to get lost?