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

Source: Brsalje ul. 5, 20000, Croatia to Dubrovnik Cable Car – Google Maps

“Crkva Gospa od Zdravlja” church, Kotor bay, Montenegro.

Source: Montenegro Day Trip from Dubrovnik | Viator

For food, possibly Galion  

Good reviews, pricey for ease of access and the killer view, by which I mean… on the Bay of Kotor…

Another waterside choice is Caffe del Marre.

And for something more of a walk away, to possibly thin the crowds, again with the views, Konoba Portun.