A man in his mid-30s was rushed to the hospital after he apparently struck his head on the reef.
The incident happened shortly before 12:30 p.m. Friday near the surf spot known as "Kaiser Bowls" in Waikiki.
According to Honolulu Emergency Service Department spokeswoman Shayne Enright, a witness said the man was surfing about 100 yards off shore when he hit his head on the reef.
Other surfers along with lifeguards pulled the surfer to shore.
Paramedics transported the victim to the Queen's Medical Center in serious condition.
About 40 students got sick and 25 of them, along with two adults, were taken to the hospital. Officials are now taking a look at what they ate for lunch.
It may be the season of giving, but unlike years past, the giving spirit is in short supply this year. The Salvation Army says donations at its Red Kettles are down by nearly one-third and it's not alone.
An 18-year-old man was arrested in connection with the death of an elderly man in Chinatown.