Liverpool Ghost Walk 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 there will be other people on the day.Weather Dependent: YesRestrictions and Considerations: You will need to be reasonably fit as there is walking involved.The minimum age is 16 years old.Availability: This experience is available on selected dates throughout the year. Excludes October.