An unresponsive swimmer was pulled onboard a moored catamaran in Honolua Bay on Thursday.
The man was apparently swimming and snorkeling before falling unresponsive.
County of Maui Ocean Safeway personnel transported a lifeguard to the catamaran as the vessel routed to Honokahau Bay, where Maui County Fire Department personnel and medics were waiting.
The victim was brought onto shore at DT Fleming Beach Park where he was pronounced dead.
MFD officials say the victim was a 65-year-old man visitor.