A day to vindicate hiking as a recreational and sporting activity and to highlight the privileged conditions of Aragon for its natural scenery and its extensive network of certified trails that make this community an international benchmark for the quality of the same.

World Environment Day is celebrated on 5 June. The first Environment Day established by the United Nations General Assembly was in 1972, so this is the 50th anniversary of this event. This year the theme is: plastic pollution.

World Bicycle Day is celebrated every 3 June. It was thanks to a UN decree, proclaimed in 2018, that this event was created to highlight the importance of an ecological and healthy means of transport.