Promotional value expires 120 days after purchase. Amount paid never expires. Children must weigh 70lbs. No pregnant women allowed. Valid for booking 2019 tours only. Not valid for tours in 2018. Reservation required. Must sign waiver. Younger than 15 must be accompanied by guardian. Limit 1 per person, may buy 2 additional as gift(s). May be repurchased every 90 days. Valid only for option purchased. All goods or services must be used by the same person. Must be 10 or older. 250 lbs. max weight. Merchant's standard cancellation policy applies (any fees not to exceed voucher price). Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings