9th Street Dirt Jumps
You've probably driven by the 9th street dirt jumps hundreds of times without realizing what they are or where they came from. They've been on the south side of Duncan Park for 20 years, built and kept up by local BMX riders in a co-op fashion, and almost no help from the City of Austin. They are free to anyone and everyone, it is a non profit, non discriminatory place, where riders of all levels can come to practice their jumps and trail riding. Although be warned the more inexperienced you are the more you could be hurt or be in the way for other riders, so it's best to do your riding when it's the least busy (early mornings). Through hard work and a lot of manual labor, the dirt jumps have helped shape Austin's BMX scene to what it is today. It isn't strange to see professional riders hitting the trails, or see BMX teams in town filming videos. Although mainly used for BMXers, mountain bikes are welcome.
If you are interested in helping keep up the dirt jumps you can donate here: https://austinparks.org/suppor