Is Manly SEA LIFE Sanctuary still open and included in the Merlin Annual Pass? As of 28th January 2018, Manly SEA LIFE Sanctuary has closed and therefore is not included in the Merlin Annual Pass. Related articles I am a Gold Merlin Annual Pass holder, would I need to purchase a full price ticket to visiting during school or public holidays? What's the difference between a Gold Merlin Annual Pass and Platinum Merlin Annual Pass? How old do you recommend a child is to have a Merlin Annual Pass? What happens when my child becomes 16 years old and is classed as an adult? What attractions are included as part of the Merlin Annual Pass?