Happy Birthday - Gift Experience Voucher - 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: Duration varies depending on your chosen experience.Group Size: Group sizes vary depending on your chosen experience.Weather Dependent: NoSpectators: You may be able to bring spectators depending on your chosen experience.Restrictions and Considerations: Height weight and health restrictions will apply depending on your chosen experience.Restrictions vary depending on your chosen experience.Requirements: Qualifications required vary depending on your chosen experience.Availability: Availability varies depending on your chosen experience seasons will also vary depending on your chosen experience.