Can I buy tickets online for the same day? Yes you can. Please be aware that purchases for use on the same day have a reduced discount but are still cheaper than our regular Walk Up prices. Click here to book and guarantee your entry. Related articles Do you have a re-entry policy? How can I get to Manly SEA LIFE Sanctuary by car? What is Manly SEA LIFE Sanctuary? What are your Terms and Conditions of purchase?