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LakeQuality

Updated 2025

Best lakes to swim in Spain

Best lakes in Spain: 87 designated bathing waters are rated Excellent for 2025. This list is the 25 with the longest run of that class, of 109 rated sites. The class measures bacteria — it is not a LakeQuality A–F grade or a safety clearance.

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Longest-running Excellent lakes in Spain

  1. Embalse Aguilar de Campoo Aguilar de Campoo Pm1Excellent · Excellent 11/11 seasons
  2. Embalse Alcorlo Toba (La) Pm1Excellent · Excellent 11/11 seasons
  3. Embalse Alloz Gues?laz/Gesalatz Pm1Excellent · Excellent 11/11 seasons
  4. Embalse As Conchas Bande Pm1Excellent · Excellent 11/11 seasons
  5. Embalse As Conchas Mu??os Pm1Excellent · Excellent 11/11 seasons
  6. Embalse Banyoles Banyoles Pm2Excellent · Excellent 11/11 seasons
  7. Embalse Bermejales Arenas del Rey Pm1Excellent · Excellent 11/11 seasons
  8. Embalse Buendia Buend?a 02 Pm1Excellent · Excellent 11/11 seasons
  9. Embalse Buendia Buend?a Pm1Excellent · Excellent 11/11 seasons
  10. Embalse Cuerda del Pozo Cidones Pm1Excellent · Excellent 11/11 seasons
  11. Embalse Cuerda del Pozo Soria Pm1Excellent · Excellent 11/11 seasons
  12. Embalse Cuerda del Pozo Soria Pm2Excellent · Excellent 11/11 seasons
  13. Embalse Cuerda del Pozo Vinuesa Pm1Excellent · Excellent 11/11 seasons
  14. Embalse de Castrelo Castrelo de Mi?o Pm1Excellent · Excellent 11/11 seasons
  15. Embalse de Ruesga Cervera de Pisuerga Pm1Excellent · Excellent 11/11 seasons
  16. Embalse Entrepe?as Aloc?n 02 Pm1Excellent · Excellent 11/11 seasons
  17. Embalse Entrepe?as Pareja 02 Pm1Excellent · Excellent 11/11 seasons
  18. Embalse Gonz?lez-Lacasa Ortigosa de Cameros Pm1Excellent · Excellent 11/11 seasons
  19. Embalse Joaquin Costa Puebla de Castro (La) Pm1Excellent · Excellent 11/11 seasons
  20. Embalse Orellana Orellana la Vieja Pm1Excellent · Excellent 11/11 seasons
  21. Embalse Rio Eume Pontes de Garc?a Rodr?guez (As) Pm1Excellent · Excellent 11/11 seasons
  22. Embalse San Juan San Mart?n de Valdeiglesias Pm1Excellent · Excellent 11/11 seasons
  23. Embalse San Juan San Mart?n de Valdeiglesias Pm2Excellent · Excellent 11/11 seasons
  24. Embalse Sant Antoni Conca de Dalt Pm1Excellent · Excellent 11/11 seasons
  25. Embalse Sant Antoni Sal?s de Pallars Pm1Excellent · Excellent 11/11 seasons

Frequently asked questions

What are the best lakes to swim in Spain?
87 of the designated bathing waters in Spain are rated Excellent for 2025. This page lists the 25 with the longest run of that class. The rating measures bacteria, not nutrients or clarity.
Is it safe to swim in Spain lakes?
An Excellent class is not a safety clearance. It does not cover algal blooms, depth, or currents. Conditions change after heavy rain. Check local notices the day you go.
Does LakeQuality give A–F grades for lakes in Spain?
No. Best-lakes lists for Spain use the authority's own Excellent to Poor class. A letter on the LakeQuality scale would be an invention.

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Where to stay near Spain

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