Promotional value expires 360 days after purchase. Amount paid never expires. Must be 21 or older. Not valid toward gratuity. Reservation required. Tours are subject to availability. Additional fee for holiday weekends and festivals. Credit card is taken at time of reservation for any possible fees. Merchant's standard cancellation policy applies (any fees not to exceed voucher price). Limit 10 per person. May be repurchased every 30 days. Must use promotional value in 1 visit(s). Valid only for option purchased. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Offer is not eligible for our promo codes or other discounts. Learn about Strike-Through Pricing and Savings