A 62-year-old man died while snorkeling off Ko Olina on Oahu, and safety officials are urging extra caution heading into the Labor Day weekend.

• The man was pronounced dead after snorkeling in Leeward Oahu waters; his name and cause of death have not been released.
• Honolulu Ocean Safety has confirmed six drownings this year, and Hawaii has recorded 93 ocean deaths in the past three years.
• Visitors drown while snorkeling more often than residents, making the end-of-summer beach rush a high-risk stretch.
• The main advice: swim at guarded beaches, ask a lifeguard about conditions, and know how to clear your mask before going in.
• Dive instructors and lifeguards warn against full-face snorkel masks, favoring the classic mouthpiece style instead.

Outlook: Expect stepped-up lifeguard warnings at Oahu beaches through the holiday weekend as visitor crowds peak.