Promotional value expires Apr 3, 2013. Amount paid never expires. Limit 1 per person, may buy 1 additional as a gift. Limit 1 per visit. Valid only for option purchased. Must activate by expiration date on your Groupon; 1-month option expires 1 month from activation date, 10-class option expires 2 months from activation date, 3-month option expires 3 months from activation date. Must arrive 15 minutes prior to first class. Must be 13+. Must sign waiver. Classes must be used by the same person. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings