25th October 23. A school of Atlantic Bluefin Tuna has been spotted launching themselves into the air off the Cornish coast by an NCI St Ives volunteer Watchkeeper.

 Volunteer Watchkeeper Peter Nason, was on duty at St Ives National Coastwatch Institution station when he spotted the school of tuna diving out of the water and he was able to take several photographs.

 This particular species of tuna is the largest in the world and can grow to a maximum size of three meters and weigh up to 250 kilos. Their torpedo-shaped bodies are built for speed and power and they can travel huge distances in the open ocean. The tuna returned to UK waters about a decade ago after being absent for nearly 100 years.

 As well as being natural showmen, the Atlantic Bluefish Tuna fish are also known for being the most expensive fish in the world and can sell for thousands, and sometimes even millions of pounds. They are illegal to catch in the UK and if the endangered species are caught by accident they must immediately be released back into the sea.

Photograph taken by Peter Nason from the St Ives lookout

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Currently 57 NCI stations are operational and manned by over 2600 volunteers keeping watch around the British Isles from Fleetwood in the North West, through Wales, to the South and East of England to Hornsea in the East Riding of Yorkshire. 

NCI watchkeepers provide the eyes and ears along the coast, monitoring radio channels and providing a listening watch in poor visibility. They are trained to deal with emergencies offering a variety of skills and experience, and full training by the NCI ensures that high standards are met.








The words National Coastwatch Institution and Eyes Along the Coast and the NCI logos are Registered Trademarks of NCI.

Contact Details

0300 111 1202
[email protected]


0845 460 1202
[email protected]

17 Dean Street, Liskeard,
Cornwall, PL14 4AB