Does 'grey' urban living lead to more 'green' holiday nights? A Netherlands Case Study

► People living in grey urban areas with little urban green were found to spend more nights away from home. ► 6% of all Dutch holiday nights may be related to a scarcity of urban green. ► In the most heavily grey urban areas 20% extra holiday nights are found. ► Extra holiday nights may be seen as a diseconomy of agglomeration; like traffic congestion. ► Results may help to link the fields of agglomeration (dis)economies, urban planning, and recreation and tourism.