Greece is marking World Environment Day 2026 with a nationwide program of events that brings the global call for climate action down to the local level — from protected areas and wetlands to city galleries, museums and island beaches.

Observed every year on June 5, World Environment Day is the United Nations’ main global platform for raising awareness and mobilizing action to protect the natural world. First celebrated in 1973, the day has grown into an international campaign involving governments, organizations, schools, communities and citizens around the world.

This year’s global commemoration, hosted by Azerbaijan, focuses on climate change under the theme “Inspired by Nature. For Climate. For Our Future.” The message is especially relevant for Greece, where rising temperatures, drought, wildfire risk, pressure on coastal ecosystems and biodiversity loss are no longer abstract threats, but visible challenges affecting daily life, tourism, agriculture and local communities.

In Greece, the Natural Environment and Climate Change Agency, NECCA, is at the center of the program, organizing 65 events across the country. Activities include guided nature walks, biodiversity recording, wildlife observation, educational games, workshops, public information events and volunteer cleanups, many of them in or near protected areas.

The aim is not only to mark a symbolic date, but to encourage citizens — especially children and young people — to experience nature directly and understand why its protection matters. Many events continue through the weekend, offering families and volunteers the chance to take part in practical environmental action beyond June 5.

Where to Go: World Environment Day Events in Greece

Friday, June 5

• Across Greece: NECCA is organizing 65 events nationwide, including nature walks, educational activities, biodiversity recording, wildlife observation, cleanups and events in protected areas (info in Greek).
• Marousi, Attica: NECCA is holding a central event on plastic pollution, including an outdoor photography exhibition at Heroes Square and a thematic panel on the protection and management of marine areas.
• Alonissos: The NECCA Management Unit for the National Marine Park of the Sporades is organizing a volunteer cleanup at Vrysitsa beach from 10:30 to 13:00.
• Drama: Regional authorities are holding the fifth year of “Our Environment – Our Life”, a program for primary school students that includes virtual reality, educational games, WebGIS activities and a Natura 2000 photo exhibition.

Saturday, June 6

• Athens: The Municipality of Athens Gallery in Metaxourgeio is hosting the family activity “Playing with the Globe!” from 12:00 to 13:00, for children aged 5 to 10.

Sunday, June 7

• Delta Axios, Chalastra: The 9th Environmental Game Festival will take place from 10:00 to 14:00 at the Delta Axios Information Center, with creative activities, games and environmental awareness actions for children and families.
• Syros: A volunteer beach cleanup in Poseidonia will be held by the local cultural association “Poseidon,” with the support of the Municipality of Syros-Ermoupolis.