Whether a bus in Europe has a bathroom depends entirely on the type of service and the distance of the route. Long-distance "coach" operators, such as FlixBus, BlaBlaCar Bus, or National Express, almost always equip their vehicles with a small chemical toilet, typically located in the center or at the rear of the bus. These are intended for emergencies rather than regular use. However, standard regional or "intercity" public buses used for shorter commutes (under 2 hours) generally do not have bathrooms. Even on long-haul coaches, it is common for the bathroom to be out of service or "locked" during short segments, as drivers rely on scheduled rest stops at service stations every 2 to 3 hours. If you are prone to motion sickness or traveling with children, it is always wise to confirm the "amenities" section of your ticket or the carrier's app before booking your journey across the continent.