Dumper Racing Experience for Two at Diggerland - 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: Your dumper experience will last for approximately 2 hours.Group Size: There will be up to 24 other people in your group.Weather Dependent: NoSpectators: You're welcome to bring along family and friends to watch free of charge.Restrictions and Considerations: If you suffer from epilepsy or any other medical condition which prohibits driving then you will not be able to take part.To participate in this activity you need to be at least 17 years old.Requirements: You will need a full valid driving licence to take part.Availability: Generally the last Saturday evening of the month April to September.