How fast can you run across the Grand Caynyon? 

How fast could you do  going across 4 times without stopping?

My guest this week is Crystal McGee. In October, Crystal set the FKT (Fastest Known Time) for running from the North Rim to the South Rim and back, and then doing it all over again. In all, she ran 95 miles with 21,000 feet of descent and ascent. She finished in a time of 28:11:26 - the women's record for a quad-crossing.

The best place to connect with Crystal is her Instagram account. You can also find absolutely stunning photos of her adventures there!

Instagram: https://www.instagram.com/crystalmariemg/