Home / Disasters and Accidents / Deadly "Floating Terrors" Wash Ashore on Welsh Beaches, Coastguard Warns
Deadly "Floating Terrors" Wash Ashore on Welsh Beaches, Coastguard Warns
3 Nov
Summary
- Portuguese Man O' War spotted on Aberavon Beach and other Welsh coasts
- Tentacles can deliver painful stings even after death
- Stings can cause welts, blisters, fever, shock, and severe allergic reactions
On November 3rd, 2025, the Welsh Coastguard issued an urgent warning to beachgoers after several sightings of Portuguese Man O' War, also known as "Floating Terrors," on the country's shores. The creatures, often mistaken for jellyfish, have been spotted on Aberavon Beach and along the Pembrokeshire, Gwynedd, and Anglesey coasts in recent days.
The Coastguard has confirmed that they will be removing the dangerous creatures from the beaches. They have advised the public to avoid touching the Portuguese Man O' War, even if they appear dead, as their tentacles can still deliver a painful sting. The venom from these stings can cause welts, blisters, fever, shock, and in rare cases, severe allergic reactions that can be life-threatening.
Experts warn that the Portuguese Man O' War is a unique marine creature composed of a colony of organisms working together. While they typically float on the ocean's surface, strong winds and storms can wash them ashore, making them a common sight on beaches after rough weather. Beachgoers are urged to exercise caution, rinse the affected area with seawater if stung, and seek immediate medical attention if experiencing any concerning symptoms.
