miami mama, My wall experience is a number of years old but my recollection is that there was only one place to start, because there IS a fee (previously it could only be paid in Croatian currency, but Croatia is supposed to be going on the euro next year, though it is something you should monitor just in case the transition gets delayed). There were a number of places you could abandon ship, so to speak. I don't recall if there would be a way to get back up (show a ticket, for example?) as we did not do the entire wall but did not try to get back on. Here's a website that may help: City walls Dubrovnik - Official site for Dubrovnik heritage. If there's a difference between what I said and what the website says, go with the website! We walked on a rainy, gloomy day (still worth every minute) but my sense is that it could be brutal up there depending on the time of year, because there is no real shade.