On 18 September 2026 in the tidal stretch of the Thames (near Tilbury and Gravesend, Essex), a pod of long-finned pilot whales was spotted. According to various estimates, the group numbered from 17 to 25 animals. Specialists call the appearance of such a pod in the Thames extremely unusual — these whales usually stay in the deeper and cooler waters of the Atlantic.
The animals are being monitored by the Port of London Authority and British Divers Marine Life Rescue. The authorities are asking people not to approach closely, not to gather in crowds, and not to publish the exact location, so as not to create unnecessary stress and not to increase the risk of stranding.
By the evening of 18 September it became known that one individual had separated from the pod and appeared to be in poor condition. Specialists continue to monitor the situation and hope that the group will be able to return to the sea on its own.
This is indeed a rare case of "whale-watching" right next to London — practically without straying from the usual routes.
It is especially surprising that the pod was spotted not off some distant ocean coast, but in the busy tidal stretch of the Thames, where vessels pass every day. For specialists, this is at once a rare opportunity to observe pilot whales in an unusual environment and a reason for caution: in a narrow water area it is harder for the animals to navigate, and noise and traffic may further disorient them.
For now, the rescuers' main task is not to intervene unnecessarily and to give the pod a chance to find its own way back to the open sea. If the whales keep their heading and do not come too close to the shallows, the unusual London excursion may well end safely — and remain one of the most unexpected wildlife stories of September.
