It appeared the man, who had been living in the area for a month, had been stung multiple times, Sgt Houston said.
A post mortem would be carried out to determine whether he died of an allergic reaction or other causes.
"It's just a terrible tragedy, very sad for the family," Mr Houston said.
The police launch, which had been patrolling the remote area, attended with the Kenepuru Rural Fire Force, an EMT team from Picton and St John.
The Westpac Rescue Helicopter was dispatched, but had to turn back due to poor weather conditions.
The man's body had been taken to Havelock by boat for transfer to hospital, Mr Houston said.
- AAP