Thirsty when discovering a new tourist attraction? Stay plastic-free and just refill your bottle for multiple uses. For Bulgaria, you can find a detailed online map from here. There is also a universal app, which can guide you to the nearest city fountain or a store/restaurant/bar, where you can refill your bottle for free. The app is called Refill and is free for download from the Google Play Store. Strictly speaking, I don’t believe that there is a shop or a restaurant in Sofia that will refuse to refill your bottle. All in all, modern technologies make it even easier to find a place to refill your bottle and thus excuses for purchasing a plastic bottle are considered by us absolutely invalid.
If you are somewhere around our office, you are most welcome to drop by and we will gladly refill your bottle with water.