People are travelling to a UK beach that "lights up" at night with what has been described as "pixie dust" in the water.
The sea glowing is a phenomenon usually restricted to tropical destinations like Thailand or the Maldives, but it can be seen right here in Britain. One of the best places in the UK to witness the bioluminescent plankton is Anglesey and the west Wales coast.
Light is dispersed from the plankton when they are agitated, for example by waves. Swimmers and paddlers can also create displays of what some people call “pixie dust” in the water.