
INTERNATIONAL COASTAL CLEANUP 2025
MORE THAN 18 MILLION VOLUNTEERS WORLDWIDE
September 20 – November 30, 2025
For the 35th consecutive year, HELMEPA, as the National Coordinator, is organizing in Greece the International Coastal Cleanup, the largest global volunteer initiative for the marine environment, with the participation of more than 18 million volunteers worldwide, who have collected over 172 million kilograms of litter. The initiative is organized internationally by Ocean Conservancy and in Greece will run from September 20 to November 30, 2025.
See Ocean Conservancy’s Annual Report here, with interesting findings from volunteer cleanup campaigns around the world.
The 2024 International Coastal Cleanup campaign in Greece broke a participation record, with 13,221 volunteers joining forces to organize 277 cleanups across the country.
Participation in the campaign is open to students, parents, teachers, Port Authorities, municipalities, companies and organizations, embassies, environmental groups, hiking and nature clubs, diving centers, sailing and yachting clubs, local communities, volunteer teams, and anyone wishing to show their care for the marine and coastal environment of our country.
See why our oceans need your help – some facts that speak for themselves.
In 1983, HELMEPA began a concerted summer awareness campaign starring the association’s “Seagull”, taking place every year since then, with the aim to spread the message for Clean Seas and Beaches to the general public. In this context, for the first time in Greece scouts and schoolchildren participated in voluntary beach cleanups, primarily in the region of Attica. Since then, beach cleanups have been established as a key information and awareness tool for the prevention of marine litter pollution. Moreover, the adoption and cleanup of a beach constitutes the most popular activity of the “HELMEPA Junior” environmental education program, which since 1993 is offered to schoolchildren, 5-13 years old, in kindergartens and primary schools throughout Greece.
The association’s Environmental Awareness Section coordinates in Greece two international voluntary initiatives: the International Coastal Clean-up Day and the European Clean-Up Day taking place in September and May respectively. As the national coordinator of these activities in Greece, HELMEPA invites its member-companies, local authorities and concerned citizens across the country, to contribute to this initiative by devoting a few hours to cleanup a nearby beach, a section of the seabed, a riverbank or lake, a forest area or park.
To facilitate the activities of the participants, HELMEPA provides them with supporting material (cleanup organization instructions, posters) and the special Trash Data Form, which should be completed and sent back. Moreover, HELMEPA contributes to the promotion of such voluntary activities throughout Greece and abroad. The processing of the recorded information results in useful scientific data pertaining to quantities, composition and origin of waste, which are made public in order to raise awareness for pollution prevention.
By enriching the database that HELMEPA has established, the association is monitoring the trend of marine debris pollution in Greece and cooperates with national and international bodies (United Nations Environment Programme – UNEP/MAP, European Environment Agency, Ocean Conservancy, Algalita, etc.) on combating this problem in a more efficient way.
The “Action Month for the Marine Environment” for 2020 was organized and coordinated in Greece by HELMEPA between 19 September and 31 October. Under the motto "We conduct beach cleanups with safety" and despite the inherent difficulties due to the Covid-19 pandemic, a total of 82 cleanups were organized, of which 14 underwater, with the participation of 2,318 volunteers. This initiative was part of the 2019 International Coastal Cleanup campaign, the world’s oldest and largest volunteer effort of its kind coordinated globally by the Ocean Conservancy with an annual participation of over 700,000 volunteers in 100 countries around the world.
In Greece, youth and adults cleaned up 83 km of shoreline, collecting and recording on data cards 21 tons of litter, part of which was recycled in collaboration with the Hellenic Recycling-Recovery Corporation (He.R.R.Co.). The recording of collected litter by volunteers is valuable as it provides a screenshot of the environmental state of Greek coasts following the visit of millions of Greeks and foreigner holidaymakers during the past summer.
In total, volunteers collected 103,548 litter items, from which the Top 10 can be seen in the following table:
Typeitems
Plastic pieces24.833
Cigarette ends18.426
Plastic bottle caps16.208
Plastic straws10.047
Plastic bottles2.882
Aluminum cans2.422
Single-use plastic cups and lids2.398
Foam pieces2.085
Paper pieces1.994
Food packaging1.703
The review of the "findings" included some surprises, as for the first time this year the cigarette ends were displaced in the second place of the most common marine litter items and replaced by plastic pieces. The top ten was dominated once again by plastic litter, which are directly linked with leisure activities in the coastal zone, remain for long in the environment and gradually decompose into microplastics entering the food chain.
HELMEPA awarded Commemorative Diplomas to the coordinators of the activities for their engagement, while for this year's results the Chairwoman of HELMEPA Ms Semiramis Paliou stated: "We congratulate all the volunteers for their participation under these unprecedented and adverse conditions, as they constitute a beacon of hope that leads and inspires activities to promote support for and protection of our seas".
The actions of the International Coastal Cleanup were projected by national and international media thus contributing to the wider awareness-raising of local communities on the need to prevent marine litter pollution. HELMEPA wholeheartedly thanks the media for their support to the campaign and congratulates all entities and volunteers because their participation in such initiatives provides a prime example of responsible conduct towards our country’s coastal and marine environment, for others to follow.
HELMEPA’s program is based on two pillars:
-
Experiential Marine Cleanup (EMC)
-
Marine Litter Monitoring (MLM)
Both activities are based on citizen science and follow specific international and European litter recording protocols.

EXPERIENTIAL MARINE CLEANUP
A fun and meaningful way to carry out a one-time cleanup activity with measurable results.
-
Fill in HELMEPA’s online Volunteer Cleanup Event Registration Form.
-
We will send you the necessary information to organize your activity.
-
Carry out your cleanup using the Marine Debris Tracker app to record the litter collected.
-
Send us your photos so we can showcase your action.
MARINE LITTER MONITORING PROGRAM
Adopt a beach! Take part in a program with a significant positive impact on the marine environment that is simple to implement. It’s a three-year commitment coordinated by your volunteer team at a specific beach, combining coastal cleanups with seasonal surveys to record marine litter.
-
Choose your preferred beach and commit for 3 years (HELMEPA will guide you in selecting beaches within the Attica region).
-
Fill in HELMEPA’s online Volunteer Cleanup Event Registration Form.
-
We will send you the necessary information to organize your activity and to use the Marine Debris Tracker app for litter recording.
-
Visit your beach at least twice a year – ideally four times a year.
-
Send us your photos, and we will celebrate your success together.
Both types of coastal cleanups offer an excellent opportunity for organizations seeking to enhance their social impact, inspire participants to commit to environmental protection, and foster the spirit of volunteerism.
In particular, the Marine Litter Monitoring Program contributes to the scientific study of the problem, providing valuable data on the quantities, types, and sources of litter.
Join us to save the seas
#BeTheChange
#SeaTheChange
#InUnityThereIsStrength
See also:
HELMEPA Marine Litter Data Card
For participants who may find it challenging to use the Marine Debris Tracker app during field activities, litter can first be recorded using the HELMEPA Marine Litter Data Card. The information can then be easily transferred to the Marine Debris Tracker app, as both follow the same data recording structure. The Data Card was developed in collaboration with the Hellenic Centre for Marine Research (HCMR), in alignment with European guidelines for the scientific monitoring of marine litter.