Directions from the Courtyard to the Renaissance Center
There's a set of stairs in the Courtyard lobby adjacent to the hotel bar. Go through the door, walk one flight of stairs up, and open the door at the top of stairs
Make a left to enter the skybridge and walk through the skybridge
Exit the skybridge and follow the signs leading to the Marriott
You will reach a set of escalators; go down one flight and follow the signs to the Marriott. Marriott elevators are next to the Starbucks. Take them to the main lobby.