Do I need to pre-book entry with my London Eye Annual Pass? If you are an existing London Eye Annual Pass holder, pre-booking is compulsory as this guarantees your entry at your preferred date and time. To pre-book, please visit here. Related articles How do I pre-book using my Merlin Annual Pass? Are there restrictions for using a Standard or Premium Merlin Annual Pass at the London Eye? What benefits to I get at the London Eye with my Merlin Annual Pass? Can I use a 2 for 1 voucher at The London Eye? Do you offer a Merlin Annual Pass where you can pay in monthly instalments?