Underwater cleanup
Join us in celebrating World Environment Day through concrete action.
Oceanum Liberandum invites you to take part in the fourth edition of our Underwater Clean-Up, taking place in Sesimbra – one of the most symbolic places in our connection to the sea and the protection of marine ecosystems.
This year, the event carries even greater significance: our association was officially invited by the United Nations and the Government of South Korea to organise an underwater clean-up in Portugal, as part of the official World Environment Day celebrations, taking place in Jeju, South Korea. This is both an honour and international recognition of the work we have been developing in defence of the ocean.
The clean-up in Sesimbra will be Portugal’s official contribution to this global movement, reaffirming our active commitment to protecting the environment, especially the marine environment.
Who can participate? Everyone. Certified divers must register directly with the diving centres partnering in this initiative. Volunteers on land just need to send us an email or a direct message through our social media to confirm participation.
More than just a clean-up, this is an opportunity for unity, environmental responsibility, and real impact. Together, we’ll show that Portugal is at the forefront of ocean protection, and that local actions can have global resonance.
We would like to thank all our partners and supporting organisations who are joining this mission and helping to make this initiative possible.
In 2025, Oceanum Liberandum organised one of the largest underwater cleanups in its history. With the participation of 57 divers and 17 onshore volunteers, together we removed 880 kg of waste from the seabed.
This achievement was only possible thanks to the dedication of everyone who believes that protecting the ocean is a shared responsibility. Each kilo removed represents not only an immediate impact on the marine ecosystem, but also a solid step towards building a cleaner and more sustainable future.
Location: Porto de Abrigo, Sesimbra
Day: 25th May 2025
Time: 9:00 am
Dive Center: Identified below
Underwater Cleanup - 25 th May 2025
Dive Centers
Partners
