- American Canoe Association
- American Rivers
- American Whitewater Association
- Austin Kayak and Paddling Meetups
- Dallas Down River Club DDRC
- Gulf Area Sea Paddlers GASP!
- Houston Area Sea Kayakers HASK
- Houston Canoe Club
- Houston Canoe Club (Facebook)
- North Texas River Runners NTRR / NTWWP (Facebook)
- Neches River Runners (Facebook)
- Texas Canoe and Kayak Racing Association
- Texas Water Safari
- The Eyes of the San Marcos (Facebook)
- Trinity Coalition
Texas River Blog
San Marcos River Rendezvous Clean Up
Mark your calendars: March 7, 2026, San Marcos River Clean up Another year has gone by. Mark your calendars on Saturday, March 7th, 2026 to be in San Marcos Texas
October 30, 2025