David is joined by Journalism Teacher PJ Cabrera , who recommends riding San Antonio's Mission Trail Bike Path. Check out his students' work at www.thefuelonline.com Follow @makemetrypod on Twitter, Instagram, and Facebook. Email the podcast at makemetry.

David is joined by Cassie Jackson who has him research a historic murder from his hometown, like her Texas True crime podcast Texas 10-31. They discuss the 1980s murder case of Raymond Lee Stewart from Rockford, IL.   Find Cassie’s Podcast Texas 10-31 on.

David is joined by Constanza Roeder to try performing Bedside Music in the Oncology unit of Methodist Hospital in San Antonio, Texas.   Follow Hearts Need Art on Instagram @heartsneedart. Or visit www.heartsneedart.org for more information. Follow @mak.

David is joined by composer and field recordist Thomas Rex Beverly for a mission to scrape a cactus with a violin bow in order to create an artificial dinosaur roar.  Find Tom online at thomasrexbeverly.com or on social media @trexbeverly. Follow @makeme.

David is joined by Rob Saldana for a recommendation of Dinuguan, a Filipino pork stew cooked in pig's blood and the Opera Documentary "The Audition" by Susan Froemke. David returns the favor with the recommendation of "Hard Knocks" on HBO. Follow Rob Sa.

David is joined by Lindsay Hess for a recommendation of a great book, A Promise of Fire - Amanda Bouchet, and a quick and fresh salsa recipe. David returns the favor with a recipe for the Winter Fire Margarita.   Follow Lindsay @LindsayLHess on twitter a.