Zahedan is a province located in the southeast of Iran neighboring Afghanistan and has a long coastal border with the Persian Gulf. Zahedan is not always chosen as a destination especially by tourists as they are concerned about their safety. Neighboring one of the unsafest countries on the planet,not getting a substantial portion of the government attention and low annual revenue devoted to this province, and in general, deprived of what it really deserves, poverty is more sensible here than anywhere else in the country, people strive to make a living and feed their children which technically can result in security and safety consequences. Therefore, we see tourists and even locals showing less interest to visit Zahedan.
The safety can itself be enough reason for everyone omitting this province from their travel plan. However, I myself believe that it's not really so unsafe making you face any trouble or any safety consequences. On the contrary, it's just another side of the widespread propaganda against Iran and is not so true. Safety concerns aside, Zahedan has a lot to offer you as a tourist especially for those looking for a real presentation of a nomadic lifestyle and a deep cultural experience.