Robert Irwin Swims With Massive Manta Ray to Kick Off 'Shark Week'

Robert Irwin, the son of the late Steve Irwin, did something that lots of folks might find bone-chilling ... he swam with a giant sea creature that looks like a stingray.

Robert was celebrating Discovery's "Shark Week" when he made the dive. As you know, Steve died in 2006 after being stung in the chest by a stingray off the Great Barrier Reef.

The 17-year-old was undaunted, saying, "I get the honour of kicking off shark week on @discovery in the USA with ‘Crikey! It’s Shark Week’🦈 For the first leg of this epic adventure, I’ll travel to the spectacular Great Barrier Reef as a warm up before I go face to face with great white sharks at the Neptune Islands. From night diving with sharks on the hunt, to getting one-on-one with massive manta rays, it was a great way to start this expedition!"

Robert was fearless, extending his hand in front of the massive manta ray.