A trimaran reportedly built in Ireland has ended up wrecked on a beach in Hawaii. 

A large portion of the massive craft was washed ashore on Kailua beach last week forcing island authorities to cut it up and remove it. There was no information about its crew but it was obvious from the state of the hulk, whatever beset it, happened a long time ago.

Beachgoers say the barnacle-covered vessel was an eye-sore and a public safety hazard.

"I thought what on earth is that," said Kailua resident Stephanie Langkamp. "Yeah it's like a UFO it really look from far away something really massive an alien really came to the beach."

And while sailors immediately recognised it was part of an old trimaran, the guessing game never stopped. We're not sure how Ireland has been name as the country of build but we'd be pleased to hear from readers.

Click HERE to see the VIDEO. Nice beach, shame about the trimaran!