Quick answer
New Braunfels sits 45 minutes south of Austin on I-35. You can drive yourself, take a party bus, or rideshare. Park at your outfitter, float the Comal or Guadalupe, then grab dinner downtown before heading back.
Driving from Austin to New Braunfels
Take I-35 south. The drive is 47 miles and runs about 45 minutes outside of summer rush. On Memorial Day, 4th of July, and Labor Day weekends plan for 75-90 minutes each way.
Best departure window: leave Austin between 8:30 and 9:30 a.m. on Saturdays. Anything after 10 a.m. and you hit the second wave of tubers from San Antonio coming north.
Shuttle vs. Self-Drive From Austin
Self-drive wins on cost for 1-3 people. Once your group hits 4-6, a charter shuttle gets competitive on per-person price and removes the designated driver headache. See the full shuttle breakdown.
Rideshare from Austin runs $80-$120 each way and gets unreliable on holiday weekends. We don't recommend it.
Where to Park in New Braunfels
Most Comal River outfitters include parking with your tube rental. Lot space fills by 11 a.m. on summer Saturdays. Show up early, or pick an outfitter with a larger lot like Texas Tubes or Rockin' R.
Avoid metered street parking near Schlitterbahn on weekends. Tickets are aggressive and tow trucks are active.
What to Do After Your Float
Grab dinner on Gruene Hall's patio, listen to live music, or drive back to Austin and hit downtown bars. If you stayed all day, the drive back is easiest after 7 p.m. when traffic settles.