When: Tuesdays, Sundays. Continues through Oct. 20
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 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.