Methodology
How this selection is scored
Historical water quality contributes up to 25 points; facilities 20; Blue Flag 15; accessibility 15; the detail of the physical profile 15; and lifeguards and first aid 10. Popularity can contribute up to 30 points when an identified, dated public poll is available: first place receives 30, last place 5 and intermediate positions a proportional score. This signal never replaces the other criteria, and unknown fields are not treated as “no”.
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