London, Aug 25 : A freediver has set a new world record by swimming through Australia''s longest underwater cave.

Mike Wells swam almost 400ft to create a new record.

And it took him two minutes and 40 seconds to master Fish Rock Cave, off New South Wales.

Wells, the first man to do this, said that it was a difficult task to complete.

"It was very hard. But I could see the light at the end of the tunnel, literally," the Telegraph quoted him as saying.

He had reportedly tried similar feat twice earlier on the cave, which is 85ft below the surface, but had to pull out due to cramp. (ANI)