Can I upgrade my ticket/LEGOLAND Discovery Center Westchester Annual Pass to a Merlin Annual Pass? Please speak to our staff at Admissions when you visit if you are looking at upgrading your ticket to an Annual Pass. Related articles I'm an Annual Pass Holder and I'm bringing a non-pass holder. Do they need to buy a ticket? Do Adults need to buy a ticket or just the Children? What benefits does the Merlin Annual Pass include? What is an Individual Admission Ticket? Where is your head office?