Algae bloom troubles tourists at Bulgaria's Sunny Beach and Sveti Vlas

A tourist shared two videos showing dense green algae, often called "sea grass," at Sunny Beach (Sunčev breg) and nearby Sveti Vlas on Bulgaria's Black Sea coast. She wrote, "I didn’t believe it, now I believe," expressing disappointment over the unexpected algae, cold evenings, frequent rain, and high parking fees. Comments on the post were divided: some visitors reported excellent experiences without algae, while others noted that algal growth is a normal seasonal phenomenon in the Black Sea during July and August, driven by warm water, nutrients, and currents. The discussion highlighted differing perceptions of the coastal conditions and the prevalence of algal blooms in the region.

The appearance of green algae is a natural process in the Black Sea, typically intensifying in summer months. Tourists are advised that algal presence can vary by location and time of year, and that costs such as parking and accommodation may affect overall satisfaction.