This video is about bottlenose dolphins in the the Bay of Biscay.
From Deutsche Welle in Germany:
Bottlenose dolphins in Baltic waters?!
A pair of bottlenose dolphins have been cruising the Baltic Sea recently. They’re not native to those waters, and must have come in from the North Atlantic. They’ve now developed a fondness for bow-wake cruising.
What scuba divers would be used to seeing in the waters of the Flensburg Fjord – in the westernmost part of the Baltic Sea near the northern German town of Flensburg on the Danish border – can be summed up in two very short words: Not much. But over the past couple of months, divers and boaters have been astonished to find themselves accompanied on occasion by a couple of playful bottlenose dolphins.
On Thursday this week (18.02.2016), a kayaker and a diver spent some quality time with “Selfie” and “Delfie,” as the dolphins have come to be called. Last summer, the pair played in the bow-wake of a tourist boat off the south coast of Sweden. Their maneuvers have become a local sensation. …
“It’s pretty special having this dolphin species here,” said Harald Benke, director of the German Ocean Museum Stralsund, who wrote his PhD about whales and dolphins. Common dolphins or white-beaked dolphins have occasionally been seen in Baltic waters, according to Benke – but bottlenose dolphins, almost never.
Since record-keeping began, there have been only three previous sightings of bottlenoses, the marine biologist said: A dead bottlenose was found floating in the waters near Stralsund in 1842, and another near Lübeck in 1882.
In 1852, a pod of bottlenoses was seen swimming in the shallow waters near Greifswald. Other than those three incidents, all has been quiet on the bottlenose-dophin-spotting front in the Baltic Sea over the past couple of centuries.
The two bottlenoses now cruising the Baltic must have entered from the Atlantic nearly a year ago. They spent the summer off Kalmar in southern Swedish waters, where they were also a hit with tourists.