Tourism in Bratislava has grown due to several factors: deregulation of air travel in Europe has increased cheap flights; Slovakia's EU membership; and Bratislava emerging as a new destination between Vienna and Budapest along the Danube river cruise route. Bratislava markets itself as an affordable city break option with attractions like old town, churches, and ski resorts nearby. However, increased tourism has both positive and negative social, economic, and environmental impacts on the city.