This video says about itself:
Whale ‘moves in’ to luxury Buenos Aires dockside neighbourhood
3 August 2015
Residents of a luxury dockside neighbourhood in Buenos Aires have welcomed an unexpected new neighbour – a whale.
People from across the city have gathered at the Puerto Madero dockland in the hopes of catching a glimpse of the mammal, swimming between the moored boats.
This 3 August 2015 video is called Argentina: Hundreds gather to watch whale swim in Buenos Aires marina.
From the BBC:
Whale swims into Buenos Aires marina
4 August 2015
Residents of an upmarket neighbourhood in the Argentine capital Buenos Aires welcomed a surprise guest when a whale swam into a city marina.
The creature was seen surfacing amongst the luxury yachts in Puerto Madero, with hundreds lining up for a glimpse.
A local police boat later tried to lure the whale to the Rio de la Plata river, which connects with the Atlantic.
Experts have suggested the animal was most likely a cub separated from its herd.
“Unusual yes, I’ve never seen one in Puerto Madero,” said one resident.
“It’s really sad,” a local bank worker told the Associated Press. “This is not its natural habitat. The poor whale is clearly lost.”
But Mariano Sironi, scientific director of the Whale Conservation Institute in Argentina, told AP he thought it was more likely to be a humpback whale.