Every child visiting Sydney Aquarium during the school holidays next month will receive a free Nemo, seal or shark mask to celebrate the aquarium's 20th birthday.
Parents will not be left out of the celebrations though, as the aquarium is also offering 30 per cent off adult and child admissions prices or 40 per cent off the combined entry fee for the Aquarium and Sydney Wildlife World next door.
New exhibits will also be on display, including five baby Eastern Water Dragons, two baby File Snakes and a large squid, the Southern Calamari.
"Everyone loves to see a baby animal and what better time to welcome them than in the month we celebrate our 20th birthday," said marketing manager Thomas Davey.