Glowing Plankton Light Up Cornwall Coast

KYNANCE COVE, CORNWALL

Visitors to the Cornish coast were treated to a rare and magical sight this week as glowing plankton lit up the sea at night. The natural event, known as bioluminescence, was seen clearly at Kynance Cove on the Lizard Peninsula.

Photographers and nature lovers were amazed as the waves sparkled with bright blue light. One visitor, Thomas Winstone, had planned to take photos of the stars but was surprised when he saw the glowing water instead. “I went into the sea and saw sparkles in the water,” he said.

Another visitor, Richard Haynes, described it as unforgettable. “When you see it light up in the waves, you will never forget it,” he said. “It looks like electric blue.”

What Causes the Glow?

The glowing water is caused by tiny sea creatures called plankton. The type seen in Cornwall is likely called Noctiluca scintillans, also known as sea sparkle. These plankton glow when they are moved by waves, fish, or swimmers.

Where and When To See It

This glowing effect is very rare and only happens under the right conditions. It is easiest to see on dark nights with little moonlight and calm seas. Other spots where it has been seen in Cornwall include Grebe Beach and Pedn Vounder.

If you want to try and see it:

• Choose a beach with little light pollution

• Go late at night, after sunset

• Be patient and let your eyes adjust to the dark

• Use a red light torch to protect your night vision

• Do not go into deep or dangerous water

A Natural Wonder Close to Home

Bioluminescent plankton are more often seen in tropical places, so seeing them in Cornwall is a real treat. It is a reminder that nature can still surprise us with beauty right on our doorstep.