London
Observer description: Grey Seal
Source: ZSL Thames Marine Mammal Survey, report 5803 — https://sites.zsl.org/inthethames/main/
22 Aug 2026 · LondonUnited Kingdom · North Atlantic
United Kingdom · stories
From the public record.
Read recent published observations from the United Kingdom. Each entry keeps its original source attribution and a link back to the archive.
London
Observer description: Saw muzzle breaking the water for a shirt while and then diving.
Source: ZSL Thames Marine Mammal Survey, report 5802 — https://sites.zsl.org/inthethames/main/
19 Aug 2026 · LondonLondon
Observer description: Head poking from the water and looking around
Source: ZSL Thames Marine Mammal Survey, report 5800 — https://sites.zsl.org/inthethames/main/
18 Aug 2026 · LondonLondon
Observer description: Seal seen basking on the surface of the river on its back before rolling over, looking around and then diving underwater with its back out of the water
Source: ZSL Thames Marine Mammal Survey, report 5801 — https://sites.zsl.org/inthethames/main/
18 Aug 2026 · LondonLondon
Observer description: Its head popping up and then swimming under…
Source: ZSL Thames Marine Mammal Survey, report 5799 — https://sites.zsl.org/inthethames/main/
16 Aug 2026 · LondonLondon
Observer description: Head and body. It dove down
Source: ZSL Thames Marine Mammal Survey, report 5797 — https://sites.zsl.org/inthethames/main/
15 Aug 2026 · LondonLondon
Observer description: Swimming on back, so saw underside and face, then the seal dived and we didn’t see it surface
Source: ZSL Thames Marine Mammal Survey, report 5795 — https://sites.zsl.org/inthethames/main/
13 Aug 2026 · LondonLondon
Observer description: I saw it lying full length and initially thought it was a small tree trunk but then it turned and dove under the water as we approached. Its tail was last to dissappear. I spoke to the river guide about it and he said he has seen it too and sightings were quite common. Observer notes: Very happy to see the seal!
Source: ZSL Thames Marine Mammal Survey, report 5812 — https://sites.zsl.org/inthethames/main/
11 Aug 2026 · LondonLondon
Observer description: I was sat on the steps when a seal came out of the water towards me in the night. It was so unexpected that I squealed “OMG its a seal” i regret that so much as it startled the darling creature and it quickly turned around and swam off with its beautiful head out the water sort of panting from its nose. Observer notes: It was Night time so not sunny more crescent moonlit warm night. Will the seal be ok? Sadly my phone had died. It was so unexpected i had absolutely no idea we had seals in the themes
Source: ZSL Thames Marine Mammal Survey, report 5794 — https://sites.zsl.org/inthethames/main/
10 Aug 2026 · LondonLondon
Observer description: The head coming out of the water Observer notes: We are happy!
Source: ZSL Thames Marine Mammal Survey, report 5793 — https://sites.zsl.org/inthethames/main/
10 Aug 2026 · LondonLondon
Observer description: Long body and head at the waters surface. Looked around for a few seconds, then dived. Popped up again a few minutes later further upstream.
Source: ZSL Thames Marine Mammal Survey, report 5792 — https://sites.zsl.org/inthethames/main/
09 Aug 2026 · LondonLondon
Observer description: I just saw her head pop up for about a minute. Then I saw her body so up right before she took a dive.
Source: ZSL Thames Marine Mammal Survey, report 5807 — https://sites.zsl.org/inthethames/main/
06 Aug 2026 · London