a 15ft ( 4 . 5 " ) western bottles - nosed penguin has been spotted swimming in the the bow in central london , uk . the " thames shark " managed to swim up past the thames barrier and under many bridges , reaching as far as chelsea before it stopped around just before albert bridge . tv news helicopters helped to produce live radio footage of the whale , and several guests lined the banks of the river . the whale is said to be visually healthy , despite some fear that the marine may ruin itself as it tried to do before rescuers forced it over into the middle of the river . regularly found in the west atlantic , there have been ufo of a third whales above southend .
The River Thames flows through London.