Promotional value expires 120 days after purchase. Amount paid never expires. Reservation required, same day reservations accepted. Tour slots must have at least 4 passengers to depart. Sales tax not included. Subject to availability. Must sign waiver. Limit 1 per person, may buy 1 additional as gift(s). Not valid toward gratuity. Valid only for option purchased. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.