When: Mondays, Tuesdays, Sundays, 9 a.m.-7 p.m. Continues through Oct. 1
To keep this destination pristine, groups of travelers with 6+ people (ages 14+) can sign up to clean a section of the Frio, Sabinal and Nueces Rivers. Volunteers will be awarded $10/person, per hour of approved scheduled cleanup, which will be donated to a charity of their choice. Participants will also be entered into a drawing for a bonus of $500 for that charity, to be drawn at the end of the program. Groups must fill out an application in advance and sign a waiver. To sign up, email email@example.com.