When skateboard icon Tony Hawk saw the growing interest in public skateparks more than a decade ago, he also noticed a disturbing gap between what the skaters needed and what the cities created for them. Hawk knew something had to change, so he stepped in and used his voice to turn the tide in the skateboarders favor.

In this 'Trep Talk Extra, Hawk shares the vision for the Tony Hawk Foundation, which has donated more than $4 million to help fund about 500 skateparks since it was founded in 2002. 

Tony Hawk's adventure sports empire includes skateboard company Birdhouse Projects, the Hawk Clothing line, a wildly popular video game series, and his production company 900 Films that teamed with YouTube this year to launch the Ride Channel.

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