SEE IT: MYSTERY SURFER CAUGHT ON VIDEO SAVING BIRD DROWNING IN THE WAVES: ‘A HERO’ Gotham Whale, an organization that tracks marine life in the New York City area, told Fox News Digital that the sighting was "somewhat [of an] unusual event."

New Yorkers were delighted to see a whale in the water, and the sight may well become more common as the whale population is reported to be growing off the coast of Brooklyn

People on the Brooklyn shore got a glimpse of the whale flashing its tail out of the water, according to the U.S. Coast Guard, which received multiple reports from spectators

Video shows a whale swimming under the Brooklyn Bridge on Monday, surprising onlookers. The sighting came after a mother and calf whale were seen near Spring Lake, NJ. (Credit: Helena Lippolis)