Half Day Dim Sum Class with Lunch - 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: This experience will last approximately 3 hours.Group Size: This experience is for one person there will be other people there on the day.Weather Dependent: NoThe minimum age for this experience is 16 years old.Availability: This experience is available Monday to Sunday throughout the year. You must take your experience before the voucher validity date.