There is something fishy (or dolphiny) about the Thames today! Tuesday 31st October 2017 | Grace London Elekricity Halloween dolphin thames London locals have sworn that they have spotted a dolphin enjoying itself around the River Thames. Or maybe it was just a giant fish dressed up for Halloween. Footage was taken on the 30th October of a dorsal fin majestically bobbing around the river and has been seen from Limehouse to Putney. Although claiming it could be a river porpoise, the RSPCA are said to be keeping an eye on the creature to ensure its safety. This is not the first time a dolphin has been spotted in the capitals famous river and it isn’t even the first sea creature to find itself here. Back in 2006, a whale was famously seen swimming past the houses of parliament after becoming disorientated during a change of tide, the bones of which are now sadly displayed at the office of The Guardian newspaper. Even a few weeks ago there were reports of a crocodile hanging about near Battersea (although this turned out to be a pond ornament). So if you spot something lurking in the water of the river Thames, try not to get too close, because this time, it might just be a monster from the deep.