Can I amend my tickets to an earlier time or date on Booking Portal? No - your tickets can only be amended to a date or time that is later than your original booked date or time. Related articles Can I change my visit time or date after my original visit time or date via Booking Portal? What is Booking Portal? How do I access Booking Portal? How do I contact you with a guest enquiry? Can I stay in SEA LIFE London Aquarium after it closes?