It is not easy being a fish when you are afraid of the water.

So spare a thought for the leaping blenny, which detests the sea so much, it chooses to live in miniature cave three feet above the tide-line in Guam, Micronesia, and scampers to higher ground when it notices even the smallest wave approaching.

The Pacific leaping blenny, which needs to frequently roll around in coastal puddles to stay wet, has been filmed for the first time by BBC’s Blue Planet II.

Introducing the nautically-challenged fish on this week’s episode, Coasts, Sir David Attenborough said: “One marine creature has virtually abandoned the sea altogether. On a few remote Pacific islands lives the most terrestrial fish on the planet.

“These Pacific Leaping Blenny seem afraid of the waves. They are poor swimmers and would be easy prey in the sea.”