Tony Costa, a 33-year-old surfer from Palmerston North, died after colliding with another surfer while riding waves in Lyall Bay, New Zealand.
Kiwi police found the man already dead at the Wellington beach, but the other surfer was not identified and the post mortem proved there were no criminal proofs found in the body.
The authorities are still interviewing potential witnesses as the eventual foggy weather might be the explanation for the collision between the surfers.
Deadly surfer-to-surfer collisions are very rare in the history of the sport.