Promotional value expires 120 days after purchase. Amount paid never expires. Online reservation required. Must sign waiver. Younger than 18 must have guardian signed waiver. Closed toed shoes required. Long pants and long sleeves are required. Must use Groupon in 1 visit. Limit 30 per person. May be repurchased every 30 days. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings