Well of the 36,000 blossoming cherry trees of 18? different varieties in Vancouver, I would think that this may be Prunus x yedoensis because it is described as having quite a distinguishing star-shaped center. These blossoms do seem a bit too pink for that species, however. As far as the location, I am only guessing that it may be the Vancouver Museum because it looks as though the hardscape in the distance may circle the round façade that the Museum seems to carry. According to the information on the Vancouver Cherry Blossom Festival, apparently it is one of the suggested places for a traditional hanami. www.vcbf.ca. Of note, the thirty Yoshino cherries in the Quad of the University of Washington in Seattle always burst into glorious bloom at the end of March. Apparently in 1964 they were removed from the UWBG’s arboretum and many thought that they were too old to survive a transplant to the Quad, but indeed they did. Much has been discussed recently regarding the age of these treasures and how to prepare the Quad for their replacement and eventual return to the earth.
In the Lower Mainland but not in the City of Vancouver. It's one of the higher points of the Lower Mainland.
They are Yoshino's, by the way. And the best descriptions of cherry tree locations in Greater Vancouver are on a site called "Vancouver Sakura Diary"