Promotional value expires 120 days after purchase. Amount paid never expires. Must sign waiver. Limit 1 per person, may buy 4 additional as gifts. Limit 1 per visit. Valid only for option purchased. All goods or services must be used by the same person. Valid only at Boston and Newburyport locations. Punch card must be used at the same location as redemption. Must be 14 or older for basic safety course. Reservation required for basic safety course. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings