Good-quality film rolls can be bought everywhere in the larger cities. Check the best-before date and only buy from stores where the materials are kept in cold storage. The best thing to do, by the way, is to bring enough film from home. Never leave films or cameras in the locked-up coach. The quickly rising temperature will soon affect the quality of the photographic materials. Not all types of camera batteries are on sale. Therefore be sure to take batteries that will last the entire holiday. People do not always like being photographed. When in doubt you had better ask first. Sometimes they will say no, every now and then they will ask for money. At a number of sites you are not allowed to take photographs.