“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.