@ City Park, City Park St., San Marcos, TX 78666
Sirenalia, a mermaid production company in Austin, Texas, has partnered with local "mermaids" to raise money on behalf of the San Marcos River Foundation. The mermaids will be at City Park in San Marcos on Friday, Sept. 15 from 4 to 7 p.m. with a photo booth to take pictures with attendees. All ages are welcome. This event is free, but donations are accepted and help protect the San Marcos river.