Yes, you are legally allowed to drink alcohol while floating (tubing) the Guadalupe River in Texas, provided you follow specific "high-fidelity" container regulations. Unlike the nearby Comal River in New Braunfels, which has a "Can Ban" prohibiting disposable containers, the Guadalupe (in certain sections) allows cans. However, you are strictly prohibited from carrying glass or styrofoam containers on the water. Furthermore, you cannot have any plastic containers smaller than five fluid ounces (effectively banning "jello shots") to reduce litter. All coolers must have a secure latch or locking mechanism—like a zipper or velcro—to prevent them from spilling their contents if you flip your tube. It is a common 2026 rule that while you can drink, public intoxication is still a punishable offense, and littering is met with heavy fines. As long as you keep your beverages in non-glass containers and "pack out" all your trash, you can enjoy a cold beer while navigating the scenic limestone cliffs and mild rapids of the Guadalupe.