Folk by the Oak Festival Tickets 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: The festival will last all day.Group Size: This experience is for two people there will be other people there on the day.Weather Dependent: NoSpectators: Unfortunately this experience is not suitable for spectators.There is no minimum age however under 16s must be accompanied by and adult.Availability: This experience is available one date of the year usually in July subject to availability.