Greece might be famed for its crystal-clear waters, featuring constantly among the top countries with blue flag beaches, but it is not all perfect. According to the first microbiological water quality findings for 2025, released by the Panhellenic Center for Ecological Research (PAKOE), there are several beaches in Attica and other parts of Greece that are unsuitable for swimming, failing the acceptable swimming standards.
The initial round of water sampling took place in May, covering 202 locations throughout Attica, including both organized and free-access beaches. According to PAKOE, 153 beaches (76%) were deemed suitable for swimming, while 49 beaches (24%) were found unsuitable due to high levels of microbial contamination.
These are the beaches deemed unsuitable for swimming in 2025.
Eastern Attica
1st Port of Daskalio (Keratea)
Porto Rafti Beach (Avlaki Avenue, near the sports field)
Nea Makri Beach
Marathon Beach
From Piraeus to Anavyssos
Piraeus – Piraiki:
Themistokleous Coast (two locations)
Palaio Faliro:
Flisvos Beach (multiple spots including Palmyra & Nautical Club)
Batis Beach
Edem Beach
Alimos – Kalamaki:
Alimos Beach (beginning section)
Voula:
Konstantinos Karamanlis Avenue Beach
Vouliagmeni:
Poseidon Winter Swimmers Club Beach
Varkiza:
Varkiza Beach (middle section) – [Listed as suitable in internal records; confirmation may be needed]
Koropi:
Marmaras Beach
Loumbardas Beach (two spots)
Agia Marina Beach (two spots)
Althea Beach
Saronikos – Kalyvia & Anavyssos:
Kalyvia Thorikou Beach
Agios Nikolaos Beach
Palaia Fokaia Beach (three spots)
Northeastern Attica
Varnavas:
Agios Dimitrios & Panteleimon Beach (two spots)
Georg. Kollias Beach & Metamorfoseos Street
Agioi Apostoloi:
Agkona Beach (three spots)
Agioi Apostoloi Beach (beginning)
Beach near Elpidos Street
Oropos:
Markopoulo Oropos Beach
Chalkoutsi Beach
Dilesi:
Beach 150 meters from the Nautical Club toward Chalkida
Avlida:
Skalakia Beach
Poseidonos Street Beach
Faros:
28th October & Kanari Streets Beach
Authorities are urging the public to consult updated water quality data before visiting beaches for swimming. Further sampling and testing are expected to continue throughout the summer season.
