Tubing the Guadalupe River — Things to Know


Always know what the CFS or the cubic feet per second that the Guadalupe River is flowing. The Guadalupe River water flow or release for the Lower Guadalupe River is controlled by the US Army Corps of Engineers.

Release refers to the amount of water being released from the Canyon Lake Reservoir into the Lower Guadalupe River in CFS (Cubic Feet per Second) The release is based on different factors such as the inflow in Canyon Lake and the level of the lake.

Our Guadalupe River trips are all on the Lower Guadalupe River so this blog is about tubing the Guadalupe River on the lower part of the river after the Canyon Lake Reservoir. .

So if you plan on tubing the Guadalupe River, or any river it’s very important to know the CFS or cubic feet per second the water is being released. Our daily flow rate is on our home page at www.shantytubes.com. You may also contact the US Army of Corps Engineers at (830)964-3341.

Guide to Release Levels for Tubing the Guadalupe River

These are recommended levels for your , but use caution and judgment at all times for your Guadalupe River trip.

  • 100-500 CFS – Recreational
  • 500-800 CFS – Challenging
  • 800-1200 CFS – Strenuous
  • 1200-3000CFS – Extreme Caution; Experienced Boaters Only
  • 3000+ CFS – Dangerous; Guided Rafts Only; NO TUBING

Okay let’s say you decide to take a tubing trip on the Guadalupe River. If the flow is 100 CFS and you decide to tube the Horseshoe section of the Guadalupe River then the trip may take about 1 1/2 to 2 hours. If the flow is 500 cfs then the trip will take about 30-40 minutes. If the flow is 900 cfs and your are not a strong swimmer then you you might think about going on a day when the flow is 100-200 CFS or going on a guided rafting trip. Or even if you are a strong swimmer, you will need a life jacket at that flow. Remember, any body of water can be unsafe at any level. Always use caution and judgment at all times.

So remember you will need to know the flow or CFS when tubing the Guadalupe River.


Canyon Dam and Reservoir, located on the Guadalupe River, Comal County, is a joint project between the U.S. Army Corps of Engineers and the Guadalupe-Blanco River Authority (GBRA). The dam was

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Have fun tubing the Guadalupe River today!

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