http://www.dubrovnik-travel-experience.com/dubrovnik-city-walls-walk.html
Dubrovnik Card: http://www.dubrovnikcard.com/how-it-works/#where-to-pick-up-
Tourist Office Info: http://www.dubrovnik.com/index.php/plan/plan-your-stay/164-tourist-information-offices
Dubrovnik Parking: http://www.total-croatia-news.com/dubrovnik-info/15966-your-guide-to-parking-in-dubrovnik AND http://www.absolute-croatia.com/dubrovnik-region/dubrovnik/parking
Walking Map: https://goo.gl/maps/y1qJa6kUamv
Walking Map from apartment: https://goo.gl/maps/hHzLNf87PdG2