it's a beautiful day at the fitzgerald national park in western australia. doing a little handstand and her man serial flying the drone high above. wasn't a lot of wind this day but it didn't stop isabelle from heading out with her kite surfer in a low wind. so what? got to seize the moment when you basically have the entire beach to yourself. the sun way up in the sky. casting some shadows. you could see -- tight shadow right there below her. so when she saw a second shadow, she wasn't immediately alarmed. >> oh -- >> oh! >> i know what that is. that's -- >> a shark. >> when cyril said, that ain't your kite shadow. look again. >> isabelle noticed the shark, heard cyril's warnings from the drone. >> ah -- >> and it was like, okay. time to get out. but -- the light winds made it a little bit more challenging for her. >> going out there, have a spotter in a drone. >> actively looking for the shark. there to kill us all. >> look at this moment right here. looks to be the closest she got to the shark. they identify it as a great white. thankfully she was able to

national mall and parade route. barriers getting installed. meagan fitzgerald is on the mall. she's been speaking with the national park service. >> reporter: they tell us today is pretty much about making sure everything is as perfect as it can be ahead of the big day tomorrow. that includes putting in roadblocks like the one behind me. you can take a look here at all the traffic those roadblocks down here is contributing to. we caught up with the secretary of homeland security who says we can expect more than 28,000 law enforcement personnel working this event. d.c. is just hours away from the 58th presidential inauguration. crews are busy on the mall making final preparations. large trucks carrying barriers and fences drove locations around the mall, ready to block off even more roads. red and pblue flashing lights with sirens will also be a common sight this weekend. we caught up with jeh johnson as he walked along pennsylvania avenue. >> this is a national special security event. secret service, which is part of the department of homeland security, is responsible for the overall coordination and planning of the se