A passenger fell overboard and was struck by the boat near Chinaman's Hat. The man is believed to be 60-year-old.
The passenger was quickly retrieved from the water and transported to the Sorrento Pier where he received medical help. Despite the efforts of the paramedics the man died.
The tragedy happened around 10am.
Detectives and investigators from the Marine Investigation Unit are trying to discover what caused the incident. 2 possibilities are considered:
1) The man fell from the boat.
2) The man jumped into the water.