Hotels in hunza you can ask for your hosts. Local embassies to get the list of these areas or places. It’s good to inquire before taking photos in sensitive areas or government offices. Talking about the food, you should try to drink mineral water always. Which is easily available at almost all of general stores. It’s not that you don’t get clean water in the cities, but usually foreigners (especially children). Go through some digestion problems in the start. Mineral water is supposed to be relatively easier to your stomachs.