Promotional value expires Mar 23, 2014. Amount paid never expires. Limit 1 per person, may buy 3 additional as gifts. Valid only for option purchased. Reservation required. 24 hour cancellation notice required. Passengers can be under 16. Must sign waiver. Subject to weather conditions. Must be 16 or older with a valid driver's license to drive; under 19 must be accompanied by a parent or guardian. Extra $20 collision coverage per driver not included. Subject to availability. Groupon is valid for a Tandem (2 person on 1 machine) tour. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings