
Cape Midia Reef
Dive site
Cape Midia, 30 km north of Constanța, marks the outer edge of a natural rocky reef system extending to 15 metres. The proximity to the Danube delta brings elevated nutrients to this stretch of coast, supporting dense populations of Black Sea sprat, mullet, and flatfish. The reef is composed of Cretaceous limestone with a distinctive amber-yellow colouration, encrusted with red and green algae and dotted with Black Sea sponges. The influence of the Danube outflow means visibility varies more here than at deeper offshore sites — spring brings sediment and phytoplankton blooms, while midsummer conditions clear. The site has historical significance as an ancient harbour approach referenced in Roman navigation records.
Conditions
Depth
4 to 15 m
Good for beginners
Current
Variable
Can pick up on the edge
Visibility
4 to 8 m
Clearest in the calm season
Water
6 to 24°C
5mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 6 | 6 | 6 | 8 | 13 | 18 | 22 | 22 | 18 | 13 | 8 | 6 |
| Vis (m) | 2 | 2 | 2 | 2 | 3 | 4 | 5 | 5 | 4 | 3 | 2 | 2 |
| Current | Moderate | Moderate | Moderate | Gentle | Gentle | calm | calm | calm | Gentle | Gentle | Moderate | Moderate |
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