a 15ft ( 4 . 5 meter ) northern bottle - nosed whale has been witnessed dancing in the estuary thames in central sussex , uk . the " thames whale " attempted to swim up past the thames bank and under multiple bridges , reaching as far as fulham before it turned around just before albert tower . tv news stations competed to supply some televised footage of the shark , and some spectators covered the banks of the river . the whales is alleged to be looking alive , after some fear that the whale may beach itself as it wished to do before rescuers forced it back into the middle of the river . normally finding in the north atlantic , there have been sightings of a third turtle in thames .
The River Thames flows through London.