A 28-year-old man was medevaced to the hospital after getting bit on the leg.
The incident happened around 1 p.m. Tuesday at a secluded beach on the Kona side of the Big Island.
Hawaii Fire Department says the man was about 100 feet offshore at Kekaha Kai State Park, which is near Keahole airport.
The victim was bit on his right leg, just above the knee.
Fire officials say the injuries are not life-threatening.
There was a tiger shark spotted in the area shortly after the incident.
"Our helicopter spotted a 14-foot shark approximately 20 yards offshore while in the area, but it's not confirmed that it's actually the shark that bit the victim," Hawaii Fire Department Battalion Chief Gerald Kosaki said.
The beaches in the area were closed for the rest of the day.
As for Wednesday, fire officials say a helicopter will fly over the area in the morning.
If no sharks are spotted, then the beaches will be open.
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.