please find detailed information here http://www.blueflag.org/

The Blue Flag beaches and marinas in Ireland - [ Traduzca esta página ]
The award of a European Blue Flag beach depends on compliance with 27 criteria
... One representative from the European Union for Coastal Conservation ...
oasis.gov.ie/.../sport_and_leisure/sport_in_ireland/blue_flag_beaches_and_marinas_in_ireland.html - 25k - En caché - Páginas similares

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Note added at 4 mins (2005-10-13 14:25:10 GMT)
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Or generally clean.

The Blue Flag is an exclusive eco-label awarded to more than 3000 beaches and marinas in 33 countries across Europe, South Africa, Canada and the Caribbean in 2005...

from the site below:
The Blue Flag is a voluntary and exclusive eco-label awarded to around 3100 beaches and marinas in 33 countries across Europe, Morocco, South Africa, Canada and the Caribbean in 2005.

The Blue Flag works towards sustainable development at beaches and marinas through publicly awarding sites that meet strict criteria dealing with water quality, environmental education and information, environmental management, and safety and other services. A few of the issues covered in the criteria include cleanliness, provisions for waste and recycling, zoning of activities, and environmental education activities for a variety of people. The campaign has also recently started a voluntary scheme for private boat owners called the Individual Blue Flag, which boaters can fly if they have signed and agreed to follow an environmental code of conduct