Maui Police say a man was found unconscious floating in waters off Black Rock in Kaanapali on Sunday.
The victim was identified as 50-year-old, Michael Taugher of Benicia, California.
According to the police, Taugher was snorkeling with members of his family.
EMS and the Maui Fire Department responded to the scene but were unable to revive Taugher.
Police say there were no signs of criminal activity.
Thousands gathered at the memorial to pay tribute to those who paid the ultimate sacrifice and to those who survived.
You may remember the story we did earlier this week about the Pearl Harbor survivor who was headed here from the mainland for the ceremony, he was bumped from the flight and didn't know if he would get here in time.
It may take drivers a little longer to get around this weekend. On Sunday, there will be lane and road closures for the Honolulu Marathon.