Tap water in Japan is safe to drink in all major cities and rural areas across the country. Japan's Waterworks Act enforces 51 water quality parameters, making Japanese tap water standards stricter than both the World Health Organization guidelines and the US Environmental Protection Agency requirements. Restaurants across

Tipping is not customary in Japan. In most situations, leaving a tip will be politely refused or returned, and in some cases it may cause confusion or embarrassment. Japan's service culture operates on the principle of omotenashi (おもてなし), where excellent service is considered a standard part of the