Welcome to Great Gonzo’s Tubes

Open Friday to Sunday, throughout the Summer!
Gates open at 11:00am, shuttles dropoff tubers from 11:00am to 4:00pm, park gates lock at 7:00pm.

Great Gonzo Tube Rentals near Texas State in San Marcos
Book online now!

home of the $15 shuttle


free tube inflation with shuttle purchase

We encourage the use of non-disposable, re-usable containers here. There is no glass or styrofoam allowed on the river.

Free cooler tube with rental of 4 or more tubes.

PLEASE NOTE: We shuttle standard float tubes only. We do not shuttle rafts, large pool floats, over sized novelty floats, etc.

Tired of being hauled around in scalding hot school buses? – Our shuttles are FAST and AIR CONDITIONED.
Need a FREE cooler tube….rent 4 or more tubes from us and get one free.
We offer 1/2 the shuttle time and 3 times the fun

Great Gonzo’s Tubes is the not just the best San Marcos River tubing destination, we’re the best tubing experience in the Texas Hill Country. If you want the most convenient and most enjoyable float close to Texas State University, come check us out. We promise you won’t leave dissapointed.

San Marcos River Tubing

Frequently Asked Questions

Our tubing season runs from Memorial Day Weekend through September.
We open at 11 a.m. Friday through Sunday. We stop putting tubes in the river at 4 p.m. and close the gates at 7:00 p.m.
There is not currently a can ban at our location, but we highly encourage the use of non-disposable and re-usable containers instead of single-use items. Consider bringing a metal growler/container or re-usable plastic container to pour your canned drinks into. It is easier to keep track of 1 non-disposable container than multiple loose cans or plastic bottles and we’d love to keep the San Marcos River pristine and free of accidental trash!
Our float lasts from 1.5 to 2 hours if you float straight through without stopping.
Our $15 shuttle is the best deal on the River……bar none. Cash prices are listed below. There is a service charge added to credit card purchases.

$15 shuttles per person / per tube
$25 tube and/or cooler tube rental w/ shuttle incl
(Free cooler tube with rental of 4 tubes)
$15 tube with bottom rental
Free tube fill up with shuttle
Free trash bags

It’s $15 per shuttle ride if you want to bring your own tube and just use the shuttle. Parking is free with shuttle purchase. And…..you can inflate it here for FREE with our fast and easy air pumps.
You bet! Shuttles are $15 per run. Shuttles run from 11:00 a.m. up until 4 p.m. Come early, float the river, have lunch, and float again.
We recommend wearing river shoes. Lace up shoes or Velcro type sandals work the best. Flip flops do not work very well at all. Barefoot is a really bad idea.
Bring plenty of sunscreen and water.
Sun glasses and a hat help. It can get awfully bright on the river.
We do not encourage stopping along the float as the property along the San Marcos River is privately owned. Purple paint along the banks is accepted as a no trespassing sign by Texas law. Trespassing fines can be pretty steep so stay in the river if possible.
All Great Gonzo’s cooler tubes come with a trash sack attached and we provide free sacks on request. Please help us keep the river clean and healthy by keeping your trash secure and by picking up trash you may see along the float! Let’s leave it cleaner than we found it! There are receptacles at the Great Gonzo’s take out to dump trash and recycling.
No. We are day use only. The property closes its gates at 7:00 p.m. on weekends
No. We do not currently allow open fires or grilling of any kind. We hope to provide picnic table/cabana areas soon for day-use grilling  areas.
You bet. Cooler tubes are free with rental of 4 or more tubes and can be rented for $15 each.
We do not, but you are welcome to bring your own. Just no glass bottles or Styrofoam please. We also encourage you to bring non-disposable containers to drink from. It is easier to keep track of 1 non-disposable container than multiple loose cans or plastic bottles!
There is no age limit to enter the property but tubers must be 18 or older unless accompanied by a parent or guardian. Parents or adult guardians must sign a waiver for anyone under 18.

Directions – 3 Miles East of I35, turn right after FM 110 traffic light

19385 San Marcos Hwy
San Marcos, TX 78666
Give us a call at 512-212-0796

Map to Great Gonzos Tube Rental and Shuttle in San Marcos