Afternoon Tea on the Thames with Prosecco for Two - 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 1 hours.Group Size: This experience is for two people. Please note that this is a shared cruise and there will be other passengers on-board.Weather Dependent: YesRestrictions and Considerations: Please advise on booking if you have any dietary requirements.The minimum age for this experience is 18 years old.Availability: This experience is available on selected Saturdays from May to November subject to availability.