Walking the city wall around Dubrovnik

One of the touristy things to do in Dubrovnik, besides all of the Game of Thrones tours, is to walk along the top of the walls that enclose the old part of the city.  It was basically a death walk in the hot sun for like 20 euros.  There was even a first aid area up there, not a good sign...  Everyone walking around was dripping with sweat.  It was kind of miserable, but we got some nice photos.