Clearest lakes in Bulgaria
Clearest lakes in Bulgaria: 11 named lakes have an official Secchi depth. The 11 below are ranked by that reading, water clarity as the authority reports it.
Lake map
Map shows 11 lakes with coordinates
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Highest Secchi readings in Bulgaria
| Lake | Place | Total phosphorus | Chlorophyll-a | Secchi | Year |
|---|---|---|---|---|---|
| Dam Dospat | — | 21 µg/L | — | 4.5 m | 2023 |
| Dam Studen Kladenec | — | 48 µg/L | — | 4.5 m | 2022 |
| Tsonevo Dam | — | 22 µg/L | — | 4.0 m | 2023 |
| Dam Ivaiilovgrad | — | 48 µg/L | 4.9 µg/L | 3.5 m | 2023 |
| Dam Ogosta | — | 53 µg/L | 11 µg/L | 3.4 m | 2023 |
| Dam Kardjali | — | 45 µg/L | — | 3.3 m | 2023 |
| Dam Aleksandar Stamboliyski | — | 46 µg/L | 2.6 µg/L | 3.0 m | 2022 |
| Dam Batak | — | 32 µg/L | 3.0 µg/L | 2.9 m | 2023 |
| Dam Jrebchevo | — | 27 µg/L | — | 2.5 m | 2023 |
| Dam Topolnica | — | 42 µg/L | 7.4 µg/L | 2.3 m | 2023 |
| Dam Koprinka | — | 36 µg/L | 15 µg/L | 2.2 m | 2023 |
Frequently asked questions
- Which lakes in Bulgaria are the clearest?
- 11 named lakes in Bulgaria have an official Secchi depth. This page ranks the 11 deepest readings. Secchi is a clarity measurement, not a swim-safety class.
- Is clear water the same as clean water?
- No. Secchi measures how far a disk stays visible. A clear lake can still have bacteria, toxins, or contaminants this catalog does not measure. Open a lake page for the authority's values.
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