Promotional value expires Nov 1, 2018. Amount paid never expires. Online registration required. 6 max per group. Tours may not always go inside caves; subject to weather and safety. Please, refer to the website for times listed prior to setting reservation. All participants are expected to arrive 30 minutes early. Reservation required. Must sign waiver. Limit 2 per person, may buy 2 additional as gift(s). May be repurchased every 30 days. Valid only for option purchased. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings