As Europe swelters through one of its most intense heat waves on record, travelers are flocking to beaches, lakes and rivers to cool off. But not every body of water is as clean as you would like. A new report from the European Environment Agency (EEA) reveals where you’ll find Europe’s cleanest swimming waters.The annual EEA report, produced in cooperation with the European Commission, evaluated more than 22,000 bathing sites across the European Union, plus Albania and Switzerland, measuring water quality at beaches, lakes and rivers. It’s one of the world's most comprehensive annual assessments of recreational water quality.The evaluation process classifies waters into four categories: excellent, good, sufficient and poor. An excellent rating indicates that the water meets the highest standards of cleanliness and safety, making it ideal for swimming and other recreational activities.The EU Bathing Water Directive, adopted in 2006, established stringent standards that have significantly improved water quality across Europe. This year’s results show another success story. Across Europe, 96% of bathing waters met at least the minimum EU quality standards, while 85% earned the highest (excellent) rating. Only 1.5% of monitored sites were classified as poor.I covered the rankings in both 2025 and 2024, and the latest report shows many of Europe’s perennial swimming favorites once again topping the list. It also echoes another recent ranking of the world’s 50 best beaches, where Europe claimed many of the globe's most spectacular stretches of sand.Europe’s Cleanest Swimming WatersWhen all bathing sites are considered—from Mediterranean beaches to alpine lakes—Cyprus comes out on top. This year, the island nation achieved a perfect score, with every monitored bathing site earning an excellent rating.That’s hardly surprising to anyone who has swum off Cyprus’s famed beaches. The island is known for calm, crystal-clear water and long stretches of Blue Flag coastline. While Cyprus has relatively few inland bathing areas than many other countries in the study, it achieved something no one else did this year: Every monitored bathing site earned an excellent rating.Greece (No. 2), Bulgaria (No. 3) and Austria (No. 4) all followed with more than 95% of bathing waters rated excellent, demonstrating that exceptional water quality isn’t limited to one corner of Europe.Greece’s result is especially impressive given the sheer number of beaches spread across thousands of islands and an extensive mainland coastline. Bulgaria continues to punch above its weight. While it’s often overshadowed by destinations like Greece and Italy, the country has become one of Europe’s standout swimming destinations, thanks to the exceptionally clean waters along its Black Sea coast and strong environmental performance.Meanwhile, Austria proves that you don’t need an ocean to rank among Europe’s cleanest swimming destinations. Its alpine lakes rank among the continent’s cleanest freshwater swimming spots.Luxembourg rounds out the top five. Although the country has relatively few monitored bathing waters, its rivers and lakes perform exceptionally well.One of the biggest surprises in this year’s report is Croatia. Long celebrated for its crystal-clear Adriatic coastline, the country ranked among Europe’s top overall performers in previous years. But in 2026, weaker scores for inland bathing sites pushed Croatia down to 12th place overall.At the opposite end of the rankings is Albania. Even though the Albanian Riviera has become popular with travelers, water quality remains inconsistent across the country. Only 16.8% of monitored bathing waters earned an excellent rating. Other countries ranking near the bottom include Estonia, Poland, Hungary and Belgium, with fewer than 70% of monitored bathing waters classified as excellent.Europe’s Cleanest Coastal WatersThe report also separates coastal and inland bathing waters, and the coastal rankings contain a few surprises of their own. This year, Cyprus, Lithuania and Slovenia all achieved perfect scores on the coastal list, with every monitored coastal bathing site earning an excellent rating. There’s one important caveat, however: Lithuania and Slovenia have relatively small coastlines and few monitored beaches.Greece (No. 4) and Bulgaria (No. 5) also performed exceptionally well, with excellent water quality across hundreds of popular swimming sites. Europe’s Cleanest Inland WatersEurope’s seaside beaches often steal the spotlight, but clean water can also be found inland. Austria once again leads the way for freshwater swimming, coming in No. 1 on the inland list. Nearly all of Austria’s monitored lakes and rivers earned excellent ratings. That reinforces the country’s reputation as one of Europe’s top swimming destinations.Finland posted outstanding results coming in at No. 2. Denmark (No. 3), Luxembourg (No. 4) and Germany (No. 5) rounded out the top performers for inland waters. One clear trend: Coastal waters are cleaner than inland swimming spots. According to the EEA, 88% of Europe’s coastal bathing waters earned an excellent rating, compared with 78% of inland lakes and rivers. Rivers remain especially challenging, with fewer than half of designated river bathing sites achieving excellent status. Heavy rainfall, agricultural runoff and wastewater overflows can all temporarily affect inland water quality.So whether you’re planning a beach vacation in Cyprus, island hopping through Greece, exploring Bulgaria’s Black Sea coast or cooling off in Austria’s alpine lakes, these rankings offer a useful guide to Europe’s cleanest places to swim. Read on for the overall rankings.Ranked: Europe’s Cleanest Swimming WatersCyprus — 100%Greece — 97.1%Bulgaria — 96.9%Austria — 96.5%Luxembourg — 94.1%Denmark — 92.4%Germany — 90.9%Italy — 89.8%Malta — 88.5%Lithuania — 86.7%Spain — 86.6%Croatia — 86.2%Latvia — 84.7%Finland — 84.5%Switzerland — 84.4%Romania — 84.0%Portugal — 82.0%Czechia — 79.7%Ireland — 78.4%Sweden — 77.7%Slovenia — 75.5%France — 74.4%Netherlands — 70.9%Slovakia — 70.0%Belgium — 67.9%Hungary — 64.0%Poland — 58.7%Estonia — 56.9%Albania — 16.8%MORE FROM FORBES:ForbesHow A Former Luxury Hotel Executive Is Reimagining Cruising For A New GenerationBy Laura Begley BloomForbesThe Best Countries To Move To In 2026—According To A New Remitly ReportBy Laura Begley BloomForbesThe 30 Most Walkable Cities In The World—According To A 2026 GuruWalk ReportBy Laura Begley Bloom