Tubing (recreation)
（重定向自Biscuiting）
![Towed tubing on a lake. Riders can often become airborne while passing over waves or wake from the motor boat or personal watercraft.](/Images/godic/202412/24/Tubing_on_Pleasant_Lake_MN2303.jpg")
![Towed tubing behind a personal watercraft on the Mississippi River](/Images/godic/202412/24/Tubing_behind_jetski2304.jpg")
![Free-floating tubers on Esopus Creek in the Catskill Mountains of New York](/Images/godic/202412/24/Tubers_on_Esopus_Creek_20112304.jpg")
![Adventure Point at Keystone Resort The operator looks to ensure the people below clear the run safely before launching this family down one of the highest tubing hills sitting at 11,640ft. On the left is their state of the art magic carpet used to deliver the tubers back up the run from the bottom.](/Images/godic/202412/24/A_family_snow_tubing_at_Keystone_Resort_in_Colorado2304.JPG")
Tubing (also known as inner tubing, "bumper tubing" or even toobing) is a recreational activity where an individual rides on top of an inner tube, either on water, snow, or through the air. The tubes themselves are also known as "donuts" or "biscuits" due to their shape.