How old can you be to enter the attraction unaccompanied? Guests aged 15 years and under cannot enter Sea Life Melbourne without a parent or guardian aged 18+ accompanying them. Related articles What is a General Admission Ticket? Are you currently offering Birthday Parties? Are there any restrictions to taking part in the Shark Dive Xtreme Experience? What identification is accepted when collecting tickets? I purchased tickets during lockdown, how do I reschedule my visit?