First off, any activity called tubing ("tubin' " is also an accepted pronunciation) guarantees a certain level of fun. That said, I don't know how the Tubing Center at Snoqualmie could get much better than it is.
Located just off Summit Central, the Tubing Center offers a groomed, easy and unique winter diversion. Come dressed for snow, buy your pass (tube usage included) and you're set. The park is open on the weekends during the day and on some evenings. (Nighttime tubing is definitely something special.)
On the main hill, there are about 10 lanes ripe for tubing, each with enough variety that by the end you'll have a favorite. Even at maximum capacity, the wait at each run is short to nonexistent. Once you've made your way down, you have the option of walking back up (a nice way to keep warm--and the faster option) or you can take the tow back up. Although slow, the tow is a piece of fun unto itself.
Tubing, which requires no skill whatsoever, is great for people of most any age or derring-do. You can take each run as a basic tube down the hill, or you can spice it up with powerful spins, running starts, riding head-first or taking some other approach that I can't begin to fathom.
After a few hours, when you're all tubed out, you can head to the park's cafe where nachos are available for purchase. An oddly great end to a great day.
http://summitatsnoqualmie.com/info/winter/tubing.asp
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