After Family Is Struck by Lightning, How You Can Avoid a Potentially Deadly Bolt

Playing What to Do When You're Stuck Outside When Lightning Strikes

A California father is lucky to be alive after he and his two children were struck by lightning in Sequoia National Park over Labor Day weekend.

Read: American Tourists Nearly Rocked Out of Boat as Mexico Earthquake Struck: 'This Is a Bad Idea'

Chris Lovera, 51, and his two children Aidan, 12, and Nadia, 9, were on a family backpacking trip when they got caught in a storm.

The sought shelter under a tree, but a short time later, it was struck by a bolt of lightning. All three were shocked.

Backpackers on the other side of Jennie Lake rushed over to help.

“The first thing I saw was two kids with blood all over their heads,” rescuer Britta Kfir told Inside Edition.

The three victims were airlifted out by chopper. They were unconscious when first responders arrived.

"I woke to a pretty horrific scene of my son in a state of absolute fear and panic,” Lovera told Inside Edition. “And a scene of my daughter lying next to him, unconscious on the ground.”

Lovera was seen grimacing as he was treated for second-degree burns. He had severe injuries to his back and arm.

His son and daughter were both treated for burns and punctured eardrums.

Read: Volunteers Rush to Mexico City School Where Children Were Killed in Quake

Would you know what to do if you're out in the open when lightning strikes all around you?

Experts say you should never seek shelter under a tree and you should get as low to the ground as possible instead.

Meteorologist George Wright told Inside Edition that running may be fine, but only if you're heading to a building in which to take shelter.

Watch: Baby, 2 Brothers Pulled From Rubble Following 4.0 Magnitude Earthquake