Poles saw thousands of jellyfish stranded on Międzyzdroj beach after a sudden high‑tide ebb on Saturday.
Massive Jellyfish Arrival
Local media group “Lubuscy Łowcy Burz” posted a video on Facebook showing thousands of jellyfish on the Baltic coast in Międzyzdroj. The post explained that the east‑coast tide had receded, leaving the creatures on the sand.
The phenomenon is natural, caused by strong wind and low pressure, and involves primarily two species: the blue button jellyfish (Aurelia aurita) and the trumpet jellyfish (Chrysaora hysoscella). The blue button is common and generally harmless, while the trumpet, though rarer, can deliver painful stings.
Sea Recedes, Beach Widens
Earlier this week a separate incident saw the Baltic Sea retreat several dozen metres in Kołobrzeg, revealing a stretch of beach behind the pier. According to a report on Gazeta.pl, “the sea receded by several dozen metres, enlarging the beach so that one could almost walk shore‑to‑shore to the pier.”
Such occurrences happen only about once every few decades and are attributed to a strong southern wind.
