An elderly visitor on a snorkeling tour died in the water off West Oahu, a reminder that calm-looking surf near Ko Olina can turn dangerous.

• An 88-year-old man was pulled unresponsive from the water and later died.
• He was snorkeling with a tour group when the emergency happened.
• Tour staff started helping before emergency crews arrived in the early afternoon.
• Ocean conditions in the area can be treacherous even when the surf looks normal.

Outlook: Expect renewed safety warnings for older snorkelers and tour operators along the West Oahu coast.