The St Helens man, who asked not to be identified, says he saw a glowing disc in the sky over the North Road entrance top the park.
He said:
The object was at a height of roughly 500 feet and appeared to the naked eye as the size of a small coin held at arms length.
It looked like a brilliant glowing fireball and looked like the underneath or belly of the object. It was circular in shape - the centre was a brilliant whitish glowing colour - and looked like its edges were on fire with flickering orange flames.
I watched it for several minutes and it would appear stationary for about 15 seconds, blink out, then instantly re-appear in a different part of the sky. I must have witnessed this manoeuvre at least ten times."
It also fired out what looked like a pulsating light several times but was completely silent. But the last time it blinked out was the last time I saw it. It just disappeared."
He added: "This was no aeroplane, police helicopter or balloon. I've never seen anything like it before. It is easy to get carried away with stories of little green men or flying saucers, but if we can land on the moon and send spacecraft to distant planets, then who's to say that there isn't other intelligent life forms in outer space doing the same thing?"
