55 Minute Treatment with Prosecco - Key InfoVoucher Validation Your voucher is valid until 01 Jul 20 You must validate book and use your voucher within the voucher expiry date.Duration: The total treatment time is 55 minutes with use of the facilities for 3 hours.Group Size: This experience is for one person there will be other people there on the day.Weather Dependent: NoSpectators: This experience is unsuitable for spectators.The minimum age is 18 years old.Availability: This experience is available Monday to Sunday throughout the year.