London
Observer description: Head swimming in west direction
Source: ZSL Thames Marine Mammal Survey, report 5716 — https://sites.zsl.org/inthethames/main/
07 Jun 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: Going in and out of the water with a fish in his/her mouth. Seagulls were following but he/she was able to escape. Kept going until the Uber boat stop in Canary Wharf and then I lost track of
Source: ZSL Thames Marine Mammal Survey, report 5715 — https://sites.zsl.org/inthethames/main/
06 Jun 2026 · LondonLondon
Observer description: We stood on the Tower Bridge and saw the seal directly. The seals head was over the surface for about 30 seconds. The seals head was dark-brown with a longer snout (like a grey seal?). Maybe it was there to take a short breath and it looked around. After that the seal submerged and swam away.
Source: ZSL Thames Marine Mammal Survey, report 5717 — https://sites.zsl.org/inthethames/main/
05 Jun 2026 · LondonLondon
Observer description: It was almost black so looked more like a sea lion as a slimmer muzzle. I thought just something floating, then its head pooped up and it was looking round at some canoeists and then dived under.
Source: ZSL Thames Marine Mammal Survey, report 5712 — https://sites.zsl.org/inthethames/main/
04 Jun 2026 · LondonLondon
Observer description: head and back. Diving twice moving down river
Source: ZSL Thames Marine Mammal Survey, report 5711 — https://sites.zsl.org/inthethames/main/
04 Jun 2026 · LondonLondon
Observer description: I saw the seal pop its head above the water twice. Unsure which species though as I was on Southwark bridge and couldn’t make it out
Source: ZSL Thames Marine Mammal Survey, report 5714 — https://sites.zsl.org/inthethames/main/
04 Jun 2026 · LondonLondon
Observer description: Grey seal’s head bobbing about in the water going in and out the water
Source: ZSL Thames Marine Mammal Survey, report 5713 — https://sites.zsl.org/inthethames/main/
04 Jun 2026 · LondonLondon
Observer description: Grey muzzle above the water.
Source: ZSL Thames Marine Mammal Survey, report 5710 — https://sites.zsl.org/inthethames/main/
04 Jun 2026 · LondonLondon
Observer description: Dead seal with a missing head
Source: ZSL Thames Marine Mammal Survey, report 5707 — https://sites.zsl.org/inthethames/main/
01 Jun 2026 · LondonLondon
Observer description: Head emerging from water and looking around. Seal then dived under, exposing its back above the surface. Seal reappeared 15 mins later and looked around
Source: ZSL Thames Marine Mammal Survey, report 5709 — https://sites.zsl.org/inthethames/main/
31 May 2026 · LondonLondon
Observer description: Seal head bobbing up and down heading down stream with tide Observer notes: Seal bobbing up and down heading down river with tide
Source: ZSL Thames Marine Mammal Survey, report 5706 — https://sites.zsl.org/inthethames/main/
31 May 2026 · LondonLondon
Observer description: Full seal crawling out of the water, no specific recognisable features
Source: ZSL Thames Marine Mammal Survey, report 5705 — https://sites.zsl.org/inthethames/main/
30 May 2026 · London