Snow tubing is a great way how to spend your free time between skiing and partying in the clubs. Not exactly cheap, but definitely fun.
More information at MammothMountain.com http://www.mammothmountain.com/winter/winter-activities/woolly%27s-tube-park
Address 6078 Minaret Rd, Mammoth Lakes 93546, United States
Coordinates 37°39'0.025" N -118°59'3.52" E