inner-tubing

inner-tubing

n
(Swimming, Water Sports & Surfing) the sport of floating on rivers, rapids, etc using a large inflated inner tube as a buoyancy device
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Willamette Pass Ski Area opened the first inner-tubing hill in 1998.
Commercial operations aside, only a single site in the mountains east of Eugene has been designated as safe for sledding and inner-tubing by the U.S.
CATE: He taught me how to water-ski and we would go inner-tubing.