Alpental opens the slopes to free-riding daredevils with races, live music, and a huge party.

Cover the split: Stick around for Sunday seminars, including a look at the rising sport of splitboarding.

Saturday-Sunday, February 16-17, 8 a.m.-6 p.m.; Alpental, 17800 Alpental Access Rd Snoqualmie Pass, WA (425-434-7669). $10-$80.

For more weekend picks, go to Rundown: Seattle.