Public park below the Common St. bridge. Park your takeout vehicle here and take out on river left. Portable toilets are usually available during the summer months.
NOTE: In recent years, the City of New Braunfels has begun "closing" the Guadalupe River at 3000+ cfs to all users except "guided rafting trips." Local whitewater boaters assert that they are obeying the spirit of that regulation, which is to prevent anyone without appropriate whitewater gear and skill from accessing the river at high flows. However, you may still be harassed by city employees for taking out at River Acres Park when the river is running at 3000+ cfs. If that occurs, then please explain politely that (a) your equipment is rated for Class IV-V, whereas the Lower Guad is never more than Class III, (b) you (or your teammates) have paddled the river before at the current level, or you've paddled more difficult rivers, and (c) your crew is proficient in self-rescue and team rescue techniques, so effectively you're self-guided. If you cannot make all three statements truthfully, then do not paddle the river at 3000+ cfs. Please be as discreet as possible and do not create a scene at the takeout, as the park may be crowded during summer months.