# International coastal cleanup efforts > Live situation record from CLSTR: https://clstr.news/situations/coastal-beach-cleanup-initiatives > Updated: 2026-07-29T07:49:33.000Z. Sources: 38. Developments: 13. Since early June, beach clean‑ups, black‑flag alerts and invasive‑species responses have highlighted mounting pollution pressures along the Iberian coastline. The Mexican Navy’s joint clean‑up and drug‑seizure operation, Spain’s emergency response to invasive Asian algae and the Ecologistas en Acción “Banderas Negras” reports set the stage for a July that brought new challenges. On 8 July, Ecologistas en Acción reported a marine fuel spill coating Palmones beach near Algeciras, threatening the protected Palmones River wetlands and the Zostera meadow that supports diverse bird and marine life. The group urged the Capitanía Marítima to investigate vessel debunkering activities and to organise a thorough cleanup. The following day, activists staged a protest at L'Almadrava beach in El Campello after the site received a black flag for chronic sewage contamination, demanding completion of delayed sewer‑upgrade works. On 13 July, municipalities on the Cádiz coast warned that renewed invasions of the non‑native alga Rugulopteryx okamurae have again overwhelmed local services. Rota alone removed more than 3,400 tonnes of algae, with peak daily removals exceeding 200 tonnes, prompting calls for additional regional and national assistance. On 28 July, the Cantabrian government declared an emergency on Trengandín beach in Noja, removing 230 tonnes of Rugulopteryx okamurae with tractors and loaders at a cost exceeding €600,000 and seeking reimbursement from the national state. In the Valencian town of Denia, new regulations limit the removal of posidonia seagrass to designated urban zones and specific periods, sparking complaints from residents who say accumulated plant material and odors are harming the beach. Later in July 2026, municipal crews in Gijón used a tractor to clear accumulated invasive seaweed from Arbeyal beach, prompting mixed local reactions about the algae’s natural role versus the desire for deeper cleaning. ## Timeline ### 2026-07-29: Spain's coastal towns tackle invasive algae on Gijón and Rota beaches Gijón and Rota municipalities intensify beach clean‑ups, removing millions of kilograms of invasive algae amid local debate over its impact. 2 sources. https://clstr.news/cluster/spains-coastal-towns-tackle-invasive-algae-on-gijn-and-rota-beaches ### 2026-07-28: Spain tackles beach seaweed buildup: invasive Asian algae cleared in Noja, posidonia controversy in Denia Spain faces beach seaweed issues as Denia residents protest posidonia buildup under strict rules, while Cantabria clears 230 t of invasive Asian algae from Noja, seeking reimbursement from the national gov't. 2 sources. https://clstr.news/cluster/spain-tackles-beach-seaweed-buildup-invasive-asian-algae-cleared-in-noja-posidonia-controversy-in-de ### 2026-07-13: Cádiz coast invasive Asian algae surge strains local authorities Invasive Asian alga Rugulopteryx okamurae is covering Cádiz beaches, prompting costly clean‑ups and prompting municipalities to seek regional and national aid. 2 sources. https://clstr.news/cluster/cdiz-coast-invasive-asian-algae-surge-strains-local-authorities ### 2026-07-09: Cantabria Socialists blame PP for failing to manage Asian algae cleanup Cantabria’s PSOE accuses the PP of shirking responsibility for Asian algae cleanup, saying municipalities should lead and the region has yet to approve a biomass‑management plan. 2 sources. https://clstr.news/cluster/cantabria-socialists-blame-pp-for-failing-to-manage-asian-algae-cleanup ### 2026-07-08: Fuel spill contaminates Palmones beach near Algeciras as sewage protests erupt in El Campello, Spain A fuel spill pollutes Palmones beach near Algeciras, prompting calls for investigation, while sewage woes trigger a protest and black‑flag warning at L'Almadrava beach in El Campello, Spain. 3 sources. https://clstr.news/cluster/fuel-spill-contaminates-palmones-beach-near-algeciras-as-sewage-protests-erupt-in-el-campello-spain ### 2026-07-08: Ecologistas en Acción flags coastal pollution in Cádiz and salmon decline in Cantabria Ecologistas en Acción reports 17 coastal Black Flags in Cádiz and warns of near‑extinction of salmon in Cantabria, urging stronger environmental protections. 2 sources. https://clstr.news/cluster/ecologistas-en-accin-flags-coastal-pollution-in-cdiz-and-salmon-decline-in-cantabria ### 2026-06-30: Andalusia coast battles invasive Asian seaweed, prompting emergency cleanup Asian seaweed invasion on Spain's Costa del Sol has triggered emergency removal efforts, costly municipal clean‑ups, and a regional “force majeure” declaration seeking state aid. 2 sources. https://clstr.news/cluster/andalusia-coast-battles-invasive-asian-seaweed-prompting-emergency-cleanup ### 2026-06-19: Spanish coastal authorities tackle algae outbreaks and water contamination on beaches Spanish towns clean invasive algae in Cádiz and keep Port Saplaya beaches closed due to microbial contamination, highlighting coastal environmental challenges. 4 sources. https://clstr.news/cluster/spanish-coastal-authorities-tackle-algae-outbreaks-and-water-contamination-on-beaches ### 2026-06-19: Mexican Navy cleans Champotón beach and seizes 270 kg of cocaine in Manzanillo The Mexican Navy cleaned Champotón beach, removing 143 kg of waste, and seized 270 kg of cocaine at Manzanillo port, detaining two migrants. 7 sources. https://clstr.news/cluster/mexican-navy-and-volunteers-clean-beaches-in-campeche-and-chetumal ### 2026-06-06: Montenegro’s Stoliv Holds Sub‑Sea Cleanup for World Ocean Day On June 7, 2024 volunteers in Stoliv, Montenegro cleaned the Bay of Kotor’s seabed at 5 p.m., organized by local NGOs under the “Čuvaj da te čuva” World Ocean Day campaign. 3 sources. https://clstr.news/cluster/stoliv-montenegro-hosts-subsea-cleanup-for-world-ocean-day ### 2026-06-06: Southern Spain boosts marine clean‑ups and anti‑illegal‑fishing efforts Spanish coastal towns launched anti‑illegal‑fishing talks in Almería and held marine clean‑ups in Algeciras, Cartagena, Almuñécar and across Murcia, while Algeciras residents protested river‑Pícaro pollution at 7 sources. https://clstr.news/cluster/marine-cleanup-volunteers-remove-debris-from-southern-spains-seabed ### 2026-06-03: Rincón de la Victoria beach cleanup engages volunteers to remove marine litter Rincón de la Victoria will host a beach and sea‑floor clean‑up on 7 June, collecting waste for scientific tracking and donating food to the Spanish Food Bank. 2 sources. https://clstr.news/cluster/rincn-de-la-victoria-beach-cleanup-engages-volunteers-to-remove-marine-litter ### 2026-06-02: Beach cleanup projects launch in Villa del Mar and Ensenada, Mexico Waste‑management plans and a community clean‑up were introduced for Villa del Mar and Arroyo San Miguel beaches in Mexico to reduce litter and protect coastal ecosystems. 3 sources. https://clstr.news/cluster/beach-cleanup-projects-launch-in-villa-del-mar-and-ensenada-mexico --- Cite as: International coastal cleanup efforts. CLSTR, https://clstr.news/situations/coastal-beach-cleanup-initiatives