The body of the last missing victim of a boat fire that killed 34 people off the coast of California was recovered Wednesday, authorities said.

The Santa Barbara County Sheriff’s Office made the announcement on Twitter, adding, “DNA testing is still being conducted to confirm [the] identities of 7 of the 34 victims recovered.”

Early in the morning on Sept. 2, the 79-foot scuba diving boat, named Conception, was ferrying passengers on the last leg of a three-day excursion when it erupted in flames off Santa Cruz Island near Santa Barbara.

The victims — 33 passengers and one crew member — were asleep below deck and had no way to escape, authorities said.

The boat’s captain and four colleagues survived by jumping overboard.

Investigators are still working to determine the cause of the Sept. 2 tragedy.

A joint criminal investigation is being conducted by the FBI, Coast Guard and US Attorney’s Office in Los Angeles. The probe is expected to last at least a year.

With Post wires