Expires 4 months after purchase. Limit 1 per up to 8 people, may buy 1 additional as a gift. Mandatory booking required. Check availability here and book here. Present Groupon on arrival. 48-hour cancellation policy. Excludes Sun-Thu. Must be 12 or older. Under 16s must be accompanied by an adult. Please wear flat, closed toe shoes or trainers. Verified using our merchant's website on 12 Sep 2017.