Expires 4 months after purchase. Limit 1 per person, may buy 2 additional as gifts. Booking required, please call 020834 63969; quote Groupon code. Present Groupon on arrival. 24-hour cancellation policy. Excludes bank holidays. New customers only. Must be 18 or older. Valid for option purchased only. Valid Mon - Sat 10am - 7pm, Sun 11am - 5pm. Verified using our merchant's price list on 13 Jan 2017.